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[GNUnet-SVN] [taler-exchange] branch master updated: Add ACM-Reference-F


From: gnunet
Subject: [GNUnet-SVN] [taler-exchange] branch master updated: Add ACM-Reference-Format.bst but..
Date: Wed, 17 May 2017 13:46:48 +0200

This is an automated email from the git hooks/post-receive script.

burdges pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 5ab8b2f  Add ACM-Reference-Format.bst but..
     new 164614a  Merge branch 'master' of ssh://taler.net/exchange
5ab8b2f is described below

commit 5ab8b2f849480a454818d5d80dbb42f9748344fe
Author: Jeffrey Burdges <address@hidden>
AuthorDate: Wed May 17 13:45:25 2017 +0200

    Add ACM-Reference-Format.bst but..
    
    References still look all fucked up.
---
 doc/paper/ACM-Reference-Format.bst | 3478 ++++++++++++++++++++++++++++++++++++
 1 file changed, 3478 insertions(+)

diff --git a/doc/paper/ACM-Reference-Format.bst 
b/doc/paper/ACM-Reference-Format.bst
new file mode 100644
index 0000000..033f0c8
--- /dev/null
+++ b/doc/paper/ACM-Reference-Format.bst
@@ -0,0 +1,3478 @@
+%%% -*-BibTeX-*-
+%%% ====================================================================
+%%%  @BibTeX-style-file{
+%%%     author          = "Nelson H. F. Beebe, Boris Veytsman and Gerald 
Murray",
+%%%     version         = "1.18",
+%%%     date            = "10 July 2016",
+%%%     filename        = "ACM-Reference-Format.bst",
+%%%     email           = "address@hidden, address@hidden,
+%%%                        address@hidden, address@hidden, address@hidden",
+%%%     codetable       = "ISO/ASCII",
+%%%     keywords        = "ACM Transactions bibliography style; BibTeX",
+%%%     license         = "public domain",
+%%%     supported       = "yes",
+%%%     abstract        = "",
+%%%  }
+%%% ====================================================================
+
+%  ACM BibTeX style, ACM-Reference-Format.bst
+%  for BibTeX version 0.99c, LaTeX version 3.141
+%  ACM extensions with code cleaned up, extended, and debugged 10--15-Nov-2008
+%  Revised 17-APRIL-2008 (Nelson)
+%  Revised 13-MARCH-2011 (Boris/Gerry)
+%  Revised 23-MARCH-2011 (Boris/Gerry)
+%  Revised 27-MARCH-2011 (Boris/Gerry)
+%  Revised 15-APRIL-2011 (Boris/Gerry)
+%  Revised 27-SEPTEMBER-2011 (Boris)
+%  Revised 10-JULY-2016 (Boris)
+%  Revised 04-FEB-2017 (Boris)
+%
+%
+% History (by Nelson)
+%
+% Based on 'acmtrans' (for ACM Journals)
+% Date: 28th April 2008
+%
+% 1. Avoid 'repeating' the 'month' values.
+% 2. Avoid incorrectly italicizing the volume number.
+% 3. Avoid non italicizing certain titles (book, inproceedings etc).
+% 4. NO series if there is NO volume.
+% 5. Sorting of reference with first surname.
+% 6. Article no added for Inproceedings.
+%
+% Date: 07th May 2008
+%
+% 1. Abbreviation list added
+%
+%   Citation format: [author-last-name year]
+%             [author-last-name and author-last-name year]
+%             [author-last-name, author-last-name, and author-last-name year]
+%             [author-last-name et al. year]
+%             [author-last-name]
+%             author-last-name [year]
+%             [author-last-name and author-last-name]
+%             [author-last-name et al.]
+%             [year] or [year,year]
+%             year or year,year
+%
+%   Reference list ordering: alphabetical by author or whatever passes
+%    for author in the absence of one.
+%
+% Features of the old acmtrans.bst:
+% =================================
+%
+% - all authors appear last name first.
+% - all pages are listed xx-xx, (no pp.) and are at the end of the reference
+% - publishers are identified as publisher, address
+% - conferences papers (inproceedings) may give city of conference,
+%   date of conference, and journal that the proceedings appear in.
+% - months abbreviated to max four letters (eg. Mar.)
+% - volume of a series indicated after the title of the series
+% - editors appear after edited title and are identified by a trailing "Eds."
+%   not in parentheses.  Editor names are not given in small caps.
+%   (unless there is no author line)
+% - names terminated with a period even if there is no first name.
+% - editions are indicated trailing after the work, not in parentheses.
+% - "et al." citations have a protected period to avoid bad spacing (jrh)
+% - "address" required when publisher given
+% - series (roman) and volume are in a sentence separate from (book-)title
+%
+%
+% Features of chicago.bst:
+% =======================
+%
+% - full names used in citations, but abbreviated citations are available
+%   (see above)
+% - if an entry has a "month", then the month and year are also printed
+%   as part of that bibitem.
+% - all conjunctions use "and" instead of "\&"
+% - major modification from Chicago Manual of Style (13th ed.) is that
+%   only the first author in a reference appears last name first-
+%   additional authors appear as J. Q. Public.
+% - pages are listed as "pp. xx-xx" in all entry types except
+%   article entries.
+% - book, inbook, and manual use "location: publisher" (or organization)
+%   for address and publisher. All other types list publishers separately.
+% - "pp." are used to identify page numbers for all entry types except
+%   articles.
+% - organization is used as a citation label if neither author nor editor
+%   is present (for manuals).
+% - "et al." is used for long author and editor lists, or when "others"
+%   is used.
+%
+% Modifications and bug fixes from newapa.bst:
+% ===========================================
+%
+%   - added month, year to bib entries if month is present
+%   - fixed bug with In proceedings, added necessary comma after title
+%   - all conjunctions changed to "and" from "\&"
+%   - fixed bug with author labels in my.full.label: "et al." now is
+%        generated when "others" is an author name
+%   - major modification from Chicago Manual of Style (13th ed.) is that
+%     only the first author in a reference appears last name first-
+%     additional authors appear as J. Q. Public.
+%   - pages are listed as "pp. xx-xx" in all entry types except
+%     article entries. Unnecessary (IMHO) "()" around page numbers
+%     were removed, and page numbers now don't end with a period.
+%   - created chicago.sty for use with this bibstyle (required).
+%   - fixed bugs in FUNCTION {format.vol.num.pages} for missing volume,
+%     number, and /or pages. Renamed to format.journal.volume.number.
+%   - fixed bug in formatting booktitles: additional period an error if
+%     book has a volume.
+%   - fixed bug: editors usually given redundant period before next clause
+%     (format.editors.dot) removed.
+%   - added label support for organizations, if both author and editor
+%     are missing (from alpha.bst). If organization is too long, then
+%     the key field is used for abbreviated citations.
+%   - In proceedings or books of several volumes, no comma was written
+%     between the "Volume x" and the page numbers (this was intentional
+%     in newapa.bst). Fixed.
+%   - Some journals may not have volumes/numbers, only month/year (eg.
+%     IEEE Computer). Fixed bug in article style that assumed volume/number
+%     was always present.
+%
+% Original documentation for newapa.sty:
+% =====================================
+%
+% This version was made by modifying the master file made by
+% Oren Patashnik (address@hidden), and the 'named' BibTeX
+% style of Peter F. Patel-Schneider.
+%
+% Copyright (C) 1985, all rights reserved.
+% Copying of this file is authorized only if either
+% (1) you make absolutely no changes to your copy, including name, or
+% (2) if you do make changes, you name it something other than 'newapa.bst'.
+% There are undoubtably bugs in this style.  If you make bug fixes,
+% improvements, etc.  please let me know.  My e-mail address is:
+%    address@hidden or address@hidden
+%
+% This style was made from 'plain.bst', 'named.bst', and 'apalike.bst',
+% with lots of tweaking to make it look like APA style, along with tips
+% from Young Ryu and Brian Reiser's modifications of 'apalike.bst'.
+%
+%
+% Start of ACM-Reference-Format-Journals.bst
+%
+% Note: Many of the new bibentry 'fields' will only work with the
+% 'ACM-Reference-Format-Journals.bst' file. Legacy .bib files (which will, in 
all probability,
+% NOT contain these new fields) will _still_ work with the 
ACM-Reference-Format-Journals.bst.
+%
+%
+ENTRY
+  { address
+    advisor
+    archiveprefix
+    author
+    booktitle
+    chapter
+    city        % jtb: added
+    date        % jtb: added
+    edition
+    editor
+    eprint
+    howpublished
+    institution
+    journal
+    key
+    month
+    note
+    number
+    organization
+    pages
+    primaryclass
+    publisher
+    school
+    series
+    title
+    type
+    volume
+    year
+        % New keys recognized
+        issue         % UTAH: used in, e.g., ACM SIGSAM Bulletin and ACM 
Communications in Computer Algebra
+        articleno
+       eid           
+        day           % UTAH: needed for newspapers, weeklies, bi-weeklies
+        doi           % UTAH
+        url           % UTAH
+        bookpages     % UTAH
+        numpages
+        lastaccessed  % UTAH: used only for @Misc{...}
+        coden         % UTAH
+        isbn          % UTAH
+        isbn-13       % UTAH
+        issn          % UTAH
+        lccn          % UTAH
+  }
+  {}
+  { label.year extra.label sort.year sort.label }
+
+INTEGERS { output.state before.all mid.sentence after.sentence after.block }
+
+INTEGERS { show-isbn-10-and-13 }  % initialized below in begin.bib
+
+INTEGERS { nameptr namesleft numnames }
+
+INTEGERS { multiresult }
+
+INTEGERS { len }
+
+INTEGERS { last.extra.num }
+
+STRINGS { s t t.org u }
+
+STRINGS { last.label next.extra }
+
+STRINGS { p1 p2 p3 page.count }
+
+FUNCTION { not }
+{
+    { #0 }
+    { #1 }
+  if$
+}
+
+FUNCTION { and }
+{
+    'skip$
+    { pop$ #0 }
+  if$
+}
+
+FUNCTION { or }
+{
+   { pop$ #1 }
+    'skip$
+  if$
+}
+
+
+FUNCTION { dump.stack.1 }
+{
+    duplicate$ "STACK[top] = [" swap$ * "]" * warning$
+}
+
+FUNCTION { dump.stack.2 }
+{
+    duplicate$ "STACK[top  ] = [" swap$ * "]" * warning$
+    swap$
+    duplicate$ "STACK[top-1] = [" swap$ * "]" * warning$
+    swap$
+}
+
+FUNCTION { empty.or.unknown }
+{
+  %% Examine the top stack entry, and push 1 if it is empty, or
+  %% consists only of whitespace, or is a string beginning with two
+  %% queries (??), and otherwise, push 0.
+  %%
+  %% This function provides a replacement for empty$, with the
+  %% convenient feature that unknown values marked by two leading
+  %% queries are treated the same as missing values, and thus, do not
+  %% appear in the output .bbl file, and yet, their presence in .bib
+  %% file(s) serves to mark values which are temporarily missing, but
+  %% are expected to be filled in eventually once more data is
+  %% obtained.  The TeX User Group and BibNet bibliography archives
+  %% make extensive use of this practice.
+  %%
+  %% An empty string cannot serve the same purpose, because just as in
+  %% statistics data processing, an unknown value is not the same as an
+  %% empty value.
+  %%
+  %% At entry: stack = ... top:[string]
+  %% At exit:  stack = ... top:[0 or 1]
+
+  duplicate$ empty$
+    { pop$ #1 }
+    { #1 #2 substring$ "??" = }
+  if$
+}
+
+FUNCTION { writeln }
+{
+  %% In BibTeX style files, the sequences
+  %%
+  %%     ... "one" "two" output
+  %%     ... "one" "two" output.xxx
+  %%
+  %% ship "one" to the output file, possibly following by punctuation,
+  %% leaving the stack with
+  %%
+  %%     ... "two"
+  %%
+  %% There is thus a one-string lag in output processing that must be
+  %% carefully handled to avoid duplicating a string in the output
+  %% file.  Unless otherwise noted, all output.xxx functions leave
+  %% just one new string on the stack, and that model should be born
+  %% in mind when reading or writing function code.
+  %%
+  %% BibTeX's asynchronous buffering of output from strings from the
+  %% stack is confusing because newline$ bypasses the buffer.  It
+  %% would have been so much easier for newline to be a character
+  %% rather than a state of the output-in-progress.
+  %%
+  %% The documentation in btxhak.dvi is WRONG:  it says
+  %%
+  %%    newline$ Writes onto the bbl file what's accumulated in the
+  %%             output buffer. It writes a blank line if and only
+  %%             if the output buffer is empty. Since write$ does
+  %%             reasonable line breaking, you should use this
+  %%             function only when you want a blank line or an
+  %%             explicit line break.
+  %%
+  %%    write$   Pops the top (string) literal and writes it on the
+  %%             output buffer (which will result in stuff being
+  %%             written onto the bbl file when the buffer fills
+  %%             up).
+  %%
+  %% Examination of the BibTeX source code shows that write$ does
+  %% indeed behave as claimed, but newline$ sends a newline character
+  %% directly to the output file, leaving the stack unchanged.  The
+  %% first line "Writes onto ... buffer." is therefore wrong.
+  %%
+  %% The original BibTeX style files almost always use "write$ newline$"
+  %% in that order, so it makes sense to hide that pair in a private
+  %% function like this one, named after a statement in Pascal,
+  %% the programming language embedded in the BibTeX Web program.
+
+  write$                % output top-of-stack string
+  newline$              % immediate write of newline (not via stack)
+}
+
+FUNCTION { init.state.consts }
+{
+  #0 'before.all :=
+  #1 'mid.sentence :=
+  #2 'after.sentence :=
+  #3 'after.block :=
+}
+
+FUNCTION { output.nonnull }
+{ % Stack in: ... R S T  Stack out: ... R T   File out: S<comma><space>
+  's :=
+  output.state mid.sentence =
+    {
+      ", " * write$
+    }
+    {
+      output.state after.block =
+        {
+          add.period$ writeln
+          "\newblock " write$
+        }
+        {
+          output.state before.all =
+            {
+              write$
+            }
+            {
+              add.period$ " " * write$
+            }
+          if$
+        }
+      if$
+      mid.sentence 'output.state :=
+    }
+  if$
+  s
+}
+
+FUNCTION { output.nonnull.dot.space }
+{ % Stack in: ... R S T  Stack out: ... R T   File out: S<dot><space>
+  's :=
+  output.state mid.sentence =           % { "<DEBUG output.nonnull.dot.space>. 
" * write$ }
+    {
+      ". " * write$
+    }
+    {
+      output.state after.block =
+        {
+          add.period$ writeln "\newblock " write$
+        }
+        {
+          output.state before.all =
+            {
+              write$
+            }
+            {
+              add.period$ " " * write$
+            }
+          if$
+        }
+      if$
+      mid.sentence 'output.state :=
+    }
+  if$
+  s
+}
+
+FUNCTION { output.nonnull.remove }
+{ % Stack in: ... R S T  Stack out: ... R T   File out: S<space>
+  's :=
+  output.state mid.sentence =
+    {
+      " " * write$
+    }
+    {
+      output.state after.block =
+        {
+          add.period$ writeln "\newblock " write$
+        }
+        {
+          output.state before.all =
+            {
+              write$
+            }
+            {
+              add.period$ " " * write$
+            }
+          if$
+        }
+      if$
+      mid.sentence 'output.state :=
+    }
+  if$
+  s
+}
+
+FUNCTION { output.nonnull.removenospace }
+{ % Stack in: ... R S T  Stack out: ... R T   File out: S
+  's :=
+  output.state mid.sentence =
+    {
+      "" * write$
+    }
+    {
+      output.state after.block =
+        {
+          add.period$ writeln "\newblock " write$
+        }
+        {
+          output.state before.all =
+            {
+              write$
+            }
+            {
+              add.period$ " " * write$
+            }
+          if$
+        }
+      if$
+      mid.sentence 'output.state :=
+    }
+  if$
+  s
+}
+
+FUNCTION { output }
+{ % discard top token if empty, else like output.nonnull
+  duplicate$ empty.or.unknown
+    'pop$
+    'output.nonnull
+  if$
+}
+
+FUNCTION { output.dot.space }
+{ % discard top token if empty, else like output.nonnull.dot.space
+  duplicate$ empty.or.unknown
+    'pop$
+    'output.nonnull.dot.space
+  if$
+}
+
+FUNCTION { output.removenospace }
+{ % discard top token if empty, else like output.nonnull.removenospace
+  duplicate$ empty.or.unknown
+    'pop$
+    'output.nonnull.removenospace
+  if$
+}
+
+FUNCTION { output.check }
+{ % like output, but warn if key name on top-of-stack is not set
+  't :=
+  duplicate$ empty.or.unknown
+    { pop$ "empty " t * " in " * cite$ * warning$ }
+    'output.nonnull
+  if$
+}
+
+FUNCTION { bibinfo.output.check }
+{ % like output.check, adding bibinfo field
+  't :=
+  duplicate$ empty.or.unknown
+    { pop$ "empty " t * " in " * cite$ * warning$ }
+    { "\bibinfo{" t "}{" * * swap$ * "}" *
+      output.nonnull }
+  if$
+}
+
+FUNCTION { output.check.dot.space }
+{ % like output.dot.space, but warn if key name on top-of-stack is not set
+  't :=
+  duplicate$ empty.or.unknown
+    { pop$ "empty " t * " in " * cite$ * warning$ }
+    'output.nonnull.dot.space
+  if$
+}
+
+FUNCTION { fin.block }
+{ % functionally, but not logically, identical to fin.entry
+   add.period$
+   writeln
+}
+
+FUNCTION { fin.entry }
+{
+   add.period$
+   writeln
+}
+
+FUNCTION { new.sentence }
+{ % update sentence state, with neither output nor stack change
+  output.state after.block =
+    'skip$
+    {
+      output.state before.all =
+        'skip$
+        { after.sentence 'output.state := }
+      if$
+    }
+  if$
+}
+
+FUNCTION { fin.sentence }
+{
+   add.period$
+   write$
+   new.sentence
+   ""
+}
+
+FUNCTION { new.block }
+{
+  output.state before.all =
+    'skip$
+    { after.block 'output.state := }
+  if$
+}
+
+FUNCTION { output.coden }       % UTAH
+{ % output non-empty CODEN as one-line sentence (stack untouched)
+  coden empty.or.unknown
+    { }
+    { "\showCODEN{" coden * "}" * writeln }
+  if$
+}
+
+FUNCTION { format.articleno }
+{
+  articleno empty.or.unknown not eid empty.or.unknown not and
+     { "Both articleno and eid are defined for " cite$ * warning$ }
+     'skip$
+  if$
+  articleno empty.or.unknown eid empty.or.unknown and
+     { "" }
+     {
+        numpages empty.or.unknown
+          { "articleno or eid field, but no numpages field, in " 
+            cite$ * warning$ }
+          { }
+        if$
+        eid empty.or.unknown 
+          { "Article \bibinfo{articleno}{" articleno * "}" * }
+          { "Article \bibinfo{articleno}{" eid * "}" * }
+        if$
+     }
+  if$
+}
+
+FUNCTION { format.year }
+{ % push year string or "????" onto output stack
+  %% Because year is a mandatory field, we always force SOMETHING
+  %% to be output
+  "\bibinfo{year}{"
+  year empty.or.unknown
+    { "????" }
+    { year }
+  if$
+  *  "}" *
+}
+
+FUNCTION { format.day.month }
+{ % push "day month " or "month " or "" onto output stack
+  day empty.or.unknown
+    {
+      month empty.or.unknown
+        { "" }
+        { "\bibinfo{date}{" month * "} " *}
+      if$
+    }
+    {
+      month empty.or.unknown
+        { "" }
+        { "\bibinfo{date}{" day * " " * month * "} " *}
+      if$
+    }
+  if$
+}
+
+FUNCTION { format.day.month.year }     % UTAH
+{ % if month is empty, push "" else push "(MON.)" or "(DD MON.)"
+  % Needed for frequent periodicals: 2008. ... New York Times C-1, C-2, C-17 
(23 Oct.)
+  % acm-*.bst addition: prefix parenthesized date string with
+  % ", Article nnn "
+  articleno empty.or.unknown eid empty.or.unknown and
+    { "" }
+    { output.state after.block =
+       {", " format.articleno * }
+       { format.articleno  }
+      if$
+    }
+  if$
+  " (" * format.day.month * format.year * ")" *
+}
+
+FUNCTION { output.day.month.year }     % UTAH
+{ % if month is empty value, do nothing; else output stack top and
+  % leave with new top string "(MON.)" or "(DD MON.)"
+  % Needed for frequent periodicals: 2008. ... New York Times C-1, C-2, C-17 
(23 Oct.)
+  format.day.month.year
+  output.nonnull.remove
+}
+
+FUNCTION { strip.doi } % UTAH
+{ % Strip any Web address prefix to recover the bare DOI, leaving the
+  % result on the output stack, as recommended by CrossRef DOI
+  % documentation.
+  % For example, reduce "http://doi.acm.org/10.1145/1534530.1534545"; to
+  % "10.1145/1534530.1534545".  That is later typeset and displayed as
+  % doi:10.1145/1534530.1534545 as the LAST item in the reference list
+  % entry.  Publisher Web sites wrap this with a suitable link to a real
+  % URL to resolve the DOI, and the master https://doi.org/ address is
+  % preferred, since publisher-specific URLs can disappear in response
+  % to economic events.  All journals are encouraged by the DOI
+  % authorities to use that typeset format and link procedures for
+  % uniformity across all publications that include DOIs in reference
+  % lists.
+  % The numeric prefix is guaranteed to start with "10.", so we use
+  % that as a test.
+  % 2017-02-04 Added stripping of https:// (Boris)
+  doi #1 #3 substring$ "10." =
+    { doi }
+    {
+      doi 't :=  % get modifiable copy of DOI
+
+      % Change https:// to http:// to strip both prefixes (BV)
+
+      t #1 #8 substring$ "https://"; =
+        { "http://";  t #9 t text.length$ #8 - substring$ * 't := }
+        { }
+      if$
+
+      t #1 #7 substring$ "http://"; =
+        {
+            t #8 t text.length$ #7 - substring$ 't :=
+
+            "INTERNAL STYLE-FILE ERROR" 's :=
+
+            % search for next "/" and assign its suffix to s
+
+            { t text.length$ }
+            {
+              t #1 #1 substring$ "/" =
+                {
+                  % save rest of string as true DOI (should be 10.xxxx/yyyy)
+                  t #2 t text.length$ #1 - substring$ 's :=
+                  "" 't :=    % empty string t terminates the loop
+                }
+                {
+                  % discard first character and continue loop: t <= 
substring(t,2,last)
+                  t #2 t text.length$ #1 - substring$ 't :=
+                }
+              if$
+            }
+            while$
+
+            % check for valid DOI (should be 10.xxxx/yyyy)
+            s #1 #3 substring$ "10." =
+              { }
+              { "unrecognized DOI substring " s * " in DOI value [" * doi * 
"]" * warning$ }
+            if$
+
+            s   % push the stripped DOI on the output stack
+
+        }
+        {
+          "unrecognized DOI value [" doi * "]" * warning$
+          doi   % push the unrecognized original DOI on the output stack
+        }
+      if$
+    }
+  if$
+}
+
+%
+% Change by BV: added standard prefix to URL
+%
+FUNCTION { output.doi } % UTAH
+{ % output non-empty DOI as one-line sentence (stack untouched)
+  doi empty.or.unknown
+    { }
+    {
+      %% NB: We want URLs at beginning of line to reduce likelihood of
+      %% BibTeX's nasty line wrapping after column 79, which then requires
+      %% manual (or automated) editing of the .bbl file to repair.
+      %% The \url{} macro strips percent-newlines, and is thus safe in
+      %% the presence of the line wrapping, but \path|...| and
+      %% \verb|...| do not.
+      "\showDOI{%" writeln
+      "\url{https://doi.org/"; strip.doi * "}}" * writeln
+    }
+  if$
+}
+
+FUNCTION { output.isbn }                % UTAH
+{ % output non-empty ISBN-10 and/or ISBN-13 as one-line sentences (stack 
untouched)
+  show-isbn-10-and-13
+    {
+      %% show both 10- and 13-digit ISBNs
+      isbn empty.or.unknown
+        { }
+        {
+          "\showISBNx{" isbn * "}" * writeln
+        }
+      if$
+      isbn-13 empty.or.unknown
+        { }
+        {
+          "\showISBNxiii{" isbn-13 * "}" * writeln
+        }
+      if$
+    }
+    {
+      %% show 10-digit ISBNs only if 13-digit ISBNs not available
+      isbn-13 empty.or.unknown
+        {
+          isbn empty.or.unknown
+            { }
+            {
+              "\showISBNx{" isbn * "}" * writeln
+            }
+          if$
+        }
+        {
+          "\showISBNxiii{" isbn-13 * "}" * writeln
+        }
+      if$
+    }
+  if$
+}
+
+FUNCTION { output.issn } % UTAH
+{ % output non-empty ISSN as one-line sentence (stack untouched)
+  issn empty.or.unknown
+    { }
+    { "\showISSN{" issn * "}" * writeln }
+  if$
+}
+
+FUNCTION { output.issue }
+{ % output non-empty issue number as a one-line sentence (stack untouched)
+  issue empty.or.unknown
+    { }
+    { "Issue " issue * "." * writeln }
+  if$
+}
+
+FUNCTION { output.lccn } % UTAH
+{ % return with stack untouched
+  lccn empty.or.unknown
+    { }
+    { "\showLCCN{" lccn * "}" * writeln }
+  if$
+}
+
+FUNCTION { output.note } % UTAH
+{ % return with stack empty
+  note empty.or.unknown
+    { }
+    { "\shownote{" note add.period$ * "}" * writeln }
+  if$
+}
+
+FUNCTION { output.note.check } % UTAH
+{ % return with stack empty
+  note empty.or.unknown
+    { "empty note in " cite$ * warning$ }
+    { "\shownote{" note add.period$ * "}" * writeln }
+  if$
+}
+
+FUNCTION { output.eprint } %
+{ % return with stack empty
+  eprint empty.or.unknown
+    { }
+    { "\showeprint"
+         archiveprefix empty.or.unknown
+           { }
+           { "["  archiveprefix "l" change.case$ "]" * * * }
+         if$
+         "{" *
+         primaryclass empty.or.unknown
+           { }
+           { primaryclass "/" * *}
+         if$
+         eprint "}" * *
+         writeln
+    }
+  if$
+}
+
+
+%
+% Changes by BV 2011/04/15.  Do not output
+% url if doi is defined
+%
+FUNCTION { output.url } % UTAH
+{ % return with stack untouched
+  % output URL and associated lastaccessed fields
+  doi empty.or.unknown
+  {
+    url empty.or.unknown
+      { }
+      {
+          %% NB: We want URLs at beginning of line to reduce likelihood of
+          %% BibTeX's nasty line wrapping after column 79, which would require
+          %% manual (or automated) editing of the .bbl file to repair.  
However,
+          %% the \url{} macro handles the unwrapping job automatically.
+          "\showURL{%" writeln
+          lastaccessed empty.or.unknown
+            { "" }
+            { "Retrieved " lastaccessed * " from " * }
+          if$
+
+          %% The URL field may contain a semicolon-separated list of Web
+          %% addresses, and we locate and wrap each of them in \url{...}.
+          %% The simplistic approach of putting the entire list into the
+          %% macro argument is that the semicolons are typeset in a
+          %% typewriter font, and no space follows them.
+          %%
+          %% We therefore replace the original code
+          %%    "\url{" * url * "}}" * writeln
+          %% with this character-at-a-time loop:
+
+          "\url{" *
+
+          url 't :=                       % get modifiable copy of URL list
+
+          { t text.length$ }
+          {
+            t #1 #1 substring$ ";" =
+              {                         % then split argument at separator
+                "};" * writeln
+                "\url{"
+              }
+              {                         % else concatenate nonblank character 
to argument
+                t #1 #1 substring$ " " =
+                  { }
+                  { t #1 #1 substring$ * }
+                if$
+              }
+            if$
+
+            t #2 t text.length$ #1 - substring$ 't :=
+          }
+          while$
+
+          "}}" * writeln
+      }
+    if$
+  }
+  { }
+  if$
+}
+
+FUNCTION { output.year.check }
+{ % warn if year empty, else output top string and leave " YEAR<label>" on 
stack in mid-sentence
+  year empty.or.unknown
+     { "empty year in " cite$ * warning$ }
+     { write$
+       " \bibinfo{year}{" year * "}"  *
+       "\natexlab{" extra.label * "}" * *
+       mid.sentence 'output.state :=
+     }
+  if$
+}
+
+
+FUNCTION { le }
+{
+  %% test whether first number is less than or equal to second number
+  %% stack in:  n1 n2
+  %% stack out: if n1 <= n2 then 1 else 0
+
+  %% "DEBUG: le " cite$ * warning$
+  > { #0 } { #1 } if$
+}
+
+FUNCTION { ge }
+{
+  %% test whether first number is greater than or equal to second number
+  %% stack in:  n1 n2
+  %% stack out: if n1 >= n2 then 1 else 0
+
+  %% "DEBUG: ge " cite$ * warning$
+  < { #0 } { #1 } if$
+}
+
+FUNCTION { is.leading.digit }
+{
+  %% test whether first character of string is a digit
+  %% stack in:  string
+  %% stack out: if first-char-is-digit then 1 else 0
+
+  #1 #1 substring$                      % replace string by string[1:1]
+  duplicate$                            % string[1:1] string[1:1]
+  chr.to.int$
+  "0" chr.to.int$ swap$ le              % "0" <= string[1:1] --> 0-or-1
+  swap$                                 % 0-or-1 string[1:1]
+  chr.to.int$
+  "9" chr.to.int$ le                    % string[1:1} <= "9" --> 0-or-1
+  and
+}
+
+FUNCTION { skip.digits }
+{
+  %% skip over leading digits in string
+  %% stack in:  string
+  %% stack out: rest-of-string leading-digits
+
+  %% "DEBUG: enter skip.digits " cite$ * warning$
+
+  %% dump.stack.1
+
+  duplicate$
+  't :=
+  't.org :=
+  "" 'u :=
+
+  { t text.length$ }
+  {
+    %% "=================DEBUG: skip.digits   t = [" t * "]" * warning$
+    t is.leading.digit
+      { t #2 t text.length$ #1 - substring$ }
+      {
+        t 'u :=
+        ""
+      }
+    if$
+    't :=
+  }
+  while$
+
+  u                                                             % rest of 
string
+  t.org #1 t.org text.length$ u text.length$ - substring$       % leading 
digits
+
+  %% "DEBUG: t.org = [" t.org * "]" * warning$
+  %% "DEBUG: u     = [" u * "]" * warning$
+
+  %% dump.stack.2
+
+  %% "DEBUG: leave skip.digits " cite$ * warning$
+}
+
+FUNCTION { skip.nondigits }
+{
+  %% skip over leading nondigits in string
+  %% stack in:  string
+  %% stack out: rest-of-string
+
+  %% "DEBUG: enter skip.nondigits " cite$ * warning$
+
+  't :=
+  "" 'u :=
+
+  { t text.length$ }
+  {
+    %% "=================DEBUG: skip.nondigits   t = [" t * "]" * warning$
+    t is.leading.digit
+      {
+        t 'u :=
+        ""
+      }
+      { t #2 t text.length$ #1 - substring$ }
+    if$
+    't :=
+  }
+  while$
+
+  u                     % rest of string
+
+  %% dump.stack.1
+  %% "DEBUG: leave skip.nondigits " cite$ * warning$
+}
+
+FUNCTION { parse.next.number }
+{
+  %% stack in:  string
+  %% stack out: rest-of-string next-numeric-part-of-string
+  %% Example:
+  %% stack in:  "123:1--123:59"
+  %% stack out: ":1--123:59" "123"
+
+  's :=
+  s skip.nondigits 's :=
+  s skip.digits
+}
+
+FUNCTION { reduce.pages.to.page.count }
+{
+  %% Stack in:  arbitrary-and-unused
+  %% Stack out: unchanged
+  %%
+  %% For the new-style pagination with article number and numpages or
+  %% pages, we expect to have BibTeX entries containing something like
+  %%     articleno = "17",
+  %%     pages     = "1--23",
+  %% with output "Article 17, 23 pages",
+  %% or
+  %%     articleno = "17",
+  %%     numpages  = "23",
+  %% with output "Article 17, 23 pages",
+  %% or
+  %%     articleno = "17",
+  %%     pages     = "17:1--17:23",
+  %% with output "Article 17, 23 pages",
+  %%
+  %% If articleno is missing or empty, then we should output "1--23",
+  %% "23" (with a warning of a missing articleno), or "17:1--17:23",
+  %% respectively.
+
+  %% "DEBUG: enter reduce.pages.to.page.count " cite$ * warning$
+
+  %% "DEBUG: pages = [" pages * "]" * warning$
+
+  pages
+  parse.next.number 'p1 :=
+  parse.next.number 'p2 :=
+  parse.next.number 'p3 :=
+  parse.next.number 'page.count :=
+
+  duplicate$
+  empty.or.unknown
+    {  }
+    {
+      duplicate$ "unexpected trailing garbage [" swap$ *
+      "] after n:p1--n:p2 in pages = [" *
+      pages *
+      "] in " *
+      cite$ *
+      warning$
+    }
+  if$
+
+  pop$
+
+  %% "DEBUG: reduce.pages.to.page.count: "
+  %% " p1 = " p1 * *
+  %% " p2 = " p2 * *
+  %% " p3 = " p3 * *
+  %% " p4 = " page.count * *
+  %% " in " cite$ * * warning$
+
+  p1 p3 =   p2 "1" =   and   numpages empty.or.unknown   and
+    { "INFO: reduced pages = [" pages * "] to numpages = [" * page.count * "]" 
* warning$ }
+    {
+      numpages empty.or.unknown
+        { pages }
+        { numpages }
+      if$
+      'page.count :=
+    }
+  if$
+
+  p1 "1" =   p3 empty.or.unknown   and   numpages empty.or.unknown   and
+    {
+      p2 'page.count :=
+      "INFO: reduced pages = [" pages * "] to numpages = [" * page.count * "]" 
* warning$
+    }
+    {
+      numpages empty.or.unknown
+        { pages }
+        { numpages }
+      if$
+      'page.count :=
+    }
+  if$
+
+  %% "DEBUG: leave reduce.pages.to.page.count " cite$ * warning$
+}
+
+FUNCTION { new.block.checkb }
+{ % issue a new.block only if at least one of top two stack strings is not 
empty
+  empty.or.unknown
+  swap$ empty.or.unknown
+  and
+    'skip$
+    'new.block
+  if$
+}
+
+FUNCTION { field.or.null }
+{ % convert empty value to null string, else return value
+  duplicate$ empty.or.unknown
+    { pop$ "" }
+    'skip$
+  if$
+}
+
+FUNCTION { emphasize }
+{ % emphasize a non-empty top string on the stack (WITHOUT italic correction)
+  duplicate$ empty.or.unknown
+    { pop$ "" }
+    { "{\em " swap$ * "}" * }
+  if$
+}
+
+FUNCTION { emphasize.with.italic.correction }
+{ % convert empty string to null string, or emphasize with a trailing italic 
correction
+  duplicate$ empty.or.unknown
+    { pop$ "" }
+    { "{\em " swap$ * "\/}" * }
+  if$
+}
+
+FUNCTION { comma }
+{ % convert empty string to null string, or brace string and add trailing comma
+  duplicate$ empty.or.unknown
+    { pop$ "" }
+    { "{" swap$ * "}," * }
+  if$
+}
+
+FUNCTION { format.names }
+{
+  % Format bibliographical entries with the first author last name first,
+  % and subsequent authors with initials followed by last name.
+  % All names are formatted in this routine.
+
+  's :=
+  #1 'nameptr :=               % nameptr = 1;
+  s num.names$ 'numnames :=    % numnames = num.name$(s);
+  numnames 'namesleft :=
+    { namesleft #0 > }
+    { nameptr #1 =
+        %NO: BAD ORDER: {"{" s nameptr "{ff~}{ll}{, jj}{, vv}" format.name$ * 
"}" * 't := }
+        %NO: BAD ORDER: {"{" s nameptr "{ff~}{ll}{, jj}{, vv}" format.name$ * 
"}" * 't := }
+        {"\bibinfo{person}{" s nameptr "{ff }{vv }{ll}{, jj}" format.name$ * 
"}" * 't := }
+        {"\bibinfo{person}{" s nameptr "{ff }{vv }{ll}{, jj}" format.name$ * 
"}" * 't := }
+      if$
+      nameptr #1 >
+        {
+          namesleft #1 >
+            { ", " * t * }
+            {
+              numnames #2 >
+                { "," * }
+                'skip$
+              if$
+              t "\bibinfo{person}{others}" =
+                { " {et~al\mbox{.}}" * } % jrh: avoid spacing problems
+                { " {and} " * t * } % from Chicago Manual of Style
+              if$
+            }
+          if$
+        }
+        't
+      if$
+      nameptr #1 + 'nameptr :=          % nameptr += 1;
+      namesleft #1 - 'namesleft :=      % namesleft =- 1;
+    }
+  while$
+}
+
+FUNCTION { my.full.label }
+{
+  's :=
+  #1 'nameptr :=               % nameptr = 1;
+  s num.names$ 'numnames :=    % numnames = num.name$(s);
+  numnames 'namesleft :=
+    { namesleft #0 > }
+
+    { s nameptr "{vv~}{ll}" format.name$ 't :=  % get the next name
+      nameptr #1 >
+        {
+          namesleft #1 >
+            { ", " * t * }
+            {
+              numnames #2 >
+                { "," * }
+                'skip$
+              if$
+              t "others" =
+                { " et~al\mbox{.}" * } % jrh: avoid spacing problems
+                { " and " * t * } % from Chicago Manual of Style
+              if$
+            }
+          if$
+        }
+        't
+      if$
+      nameptr #1 + 'nameptr :=          % nameptr += 1;
+      namesleft #1 - 'namesleft :=      % namesleft =- 1;
+    }
+  while$
+
+}
+
+FUNCTION { format.names.fml }
+{
+  % Format names in "familiar" format, with first initial followed by
+  % last name. Like format.names, ALL names are formatted.
+  % jtb: The names are NOT put in small caps
+
+  's :=
+  #1 'nameptr :=               % nameptr = 1;
+  s num.names$ 'numnames :=    % numnames = num.name$(s);
+  numnames 'namesleft :=
+    { namesleft #0 > }
+
+    {
+      "\bibinfo{person}{" s nameptr "{ff~}{vv~}{ll}{, jj}" format.name$ * "}" 
* 't :=
+
+      nameptr #1 >
+        {
+          namesleft #1 >
+            { ", " * t * }
+            {
+              numnames #2 >
+                { "," * }
+                'skip$
+              if$
+              t "\bibinfo{person}{others}" =
+                { " {et~al\mbox{.}}" * }
+                { " {and} " * t * }
+              if$
+            }
+          if$
+        }
+        't
+      if$
+      nameptr #1 + 'nameptr :=          % nameptr += 1;
+      namesleft #1 - 'namesleft :=      % namesleft =- 1;
+    }
+  while$
+}
+
+FUNCTION { format.authors }
+{
+  author empty.or.unknown
+    { "" }
+    {
+      "\bibfield{author}{"
+      author format.names add.period$ * "}" *} % jtb: add period if none before
+  if$
+}
+
+FUNCTION { format.key }
+{
+  empty.or.unknown
+    { key field.or.null }
+    { "" }
+  if$
+}
+
+FUNCTION { format.no.key }
+{
+  empty.or.unknown
+    { "" }
+    { "" }
+  if$
+}
+
+FUNCTION { format.editors.fml }
+{
+  % Format editor names for use in the "in" types: inbook, incollection,
+  % inproceedings: first initial, then last names. When editors are the
+  % LABEL for an entry, then format.editor is used which lists editors
+  % by last name first.
+
+  editor empty.or.unknown
+    { "" }
+    {
+      "\bibfield{editor}{"
+      editor format.names.fml
+      *  "}" *
+      editor num.names$ #1 >
+        { " (Eds.)" * }
+        { " (Ed.)" * }
+      if$
+    }
+  if$
+}
+
+FUNCTION { format.editors }
+{ % format editor names for use in labels, last names first.
+  editor empty.or.unknown
+    { "" }
+    {
+      "\bibfield{editor}{"
+      editor format.names
+      *  "}" *
+      editor num.names$ #1 >
+        { " (Eds.)." * }
+        { " (Ed.)." * }
+      if$
+    }
+  if$
+}
+
+FUNCTION { format.articletitle }
+{
+  title empty.or.unknown
+    { "" }
+    % Use this to preserve lettercase in titles:
+    { "\showarticletitle{" title * "}" * }
+    % Use this for downcase title style:
+    % { \showarticletitle{" title "t" change.case$ * "}" * }
+  if$
+}
+
+FUNCTION { format.title }
+{
+  title empty.or.unknown
+    { "" }
+    % Use this to preserve lettercase in titles:
+    { "\bibinfo{title}{" title * "}" * }
+    % Use this for downcase title style:
+    % { title "t" change.case$ }
+  if$
+}
+
+FUNCTION { n.dashify }
+{
+  't :=
+  ""
+    { t empty.or.unknown not }
+    {
+      t #1 #1 substring$ "-" =
+        {
+          t #1 #2 substring$ "--" = not
+            { "--" *
+              t #2 global.max$ substring$ 't :=
+            }
+            {
+              { t #1 #1 substring$ "-" = }
+              {
+                "-" *
+                t #2 global.max$ substring$ 't :=
+              }
+              while$
+            }
+          if$
+        }
+        {
+          t #1 #1 substring$ *
+          t #2 global.max$ substring$ 't :=
+        }
+      if$
+    }
+  while$
+}
+
+FUNCTION { format.btitle }
+{
+  "\bibinfo{booktitle}{"
+  edition empty.or.unknown
+  { title emphasize }
+  { title empty.or.unknown
+    { title emphasize } % jtb: what is this supposed to do ?!?
+    { "{\em " title * "\/} (\bibinfo{edition}{" * edition "l" change.case$ *
+    "} ed.)" * } % jtb: no parens for ed.
+    if$
+  }
+  if$
+  * "}" *
+}
+
+FUNCTION { format.emphasize.booktitle }
+{ % push "" or "{\em booktitle}" or "{\em booktitle}, (second ed.)" on stack
+  "\bibinfo{booktitle}{"
+  edition empty.or.unknown
+    { booktitle emphasize }
+    { booktitle empty.or.unknown
+      { "" }
+      { "{\em " booktitle * "} (\bibinfo{edition}{" *
+      edition "l" change.case$ * "} ed.)" * }
+      if$
+    }
+  if$
+  * "}" *
+}
+
+FUNCTION { format.city }
+{
+  % jtb: if the preceding string (the title of the conference) is non-empty,
+  % jtb: append the location, otherwise leave empty (so as to trigger the
+  % jtb: error message in output.check
+
+  duplicate$ empty.or.unknown
+    { }
+    {
+      city empty.or.unknown
+        {
+          date empty.or.unknown
+            { }
+            { " (" * date * ")" * }
+          if$
+        }
+        {
+          date empty.or.unknown
+            { " (" * city * ")" * }
+            { " (" * city * ", " * date * ")" * }
+          if$
+        }
+      if$
+    }
+  if$
+}
+
+FUNCTION { tie.or.space.connect }
+{
+  duplicate$ text.length$ #3 <
+    { "~" }
+    { " " }
+  if$
+  swap$ * *
+}
+
+FUNCTION { either.or.check }
+{
+  empty.or.unknown
+    'pop$
+    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
+  if$
+}
+
+FUNCTION { format.bvolume }
+{
+  % jtb: If there is a series, this is added and the volume trails after it.
+  % jtb: Otherwise, "Vol" is Capitalized.
+
+  volume empty.or.unknown
+    { "" }
+    {
+      series empty.or.unknown
+        { "Vol.~\bibinfo{volume}{" volume "}" * *}
+        { "\bibinfo{series}{" series "}, " * *
+          "Vol.~\bibinfo{volume}{" volume "}" * * *}
+      if$
+      "volume and number" number either.or.check
+    }
+  if$
+}
+
+FUNCTION { format.bvolume.noseries }
+{
+  volume empty.or.unknown
+    { "" }
+    { "Vol.~\bibinfo{volume}{" volume "}" * *
+      "volume and number" number either.or.check
+    }
+  if$
+}
+
+FUNCTION { format.series }
+{
+  series empty.or.unknown
+    {""}
+    {" {\em (\bibinfo{series}{" * series "})}" *}
+  if$
+}
+
+FUNCTION { format.number.series }
+{
+  volume empty.or.unknown
+    {
+      number empty.or.unknown
+        {
+          volume empty.or.unknown
+          { "" }
+          {
+            series empty.or.unknown
+              { "" }
+              { " (\bibinfo{series}{" series * "})" * }
+            if$
+          }
+          if$
+        }                                       %    { series field.or.null }
+        {
+          output.state mid.sentence =
+            { "Number" }                        % gnp - changed to mixed case 
always
+            { "Number" }
+          if$
+          number tie.or.space.connect series empty.or.unknown
+            { "there's a number but no series in " cite$ * warning$ }
+            { " in \bibinfo{series}{" * series * "}" * }
+          if$
+        }
+      if$
+    }
+    {
+      ""
+    }
+  if$
+}
+
+FUNCTION { multi.page.check }
+{
+  't :=
+  #0 'multiresult :=
+    { multiresult not
+      t empty.or.unknown not
+      and
+    }
+    { t #1 #1 substring$
+      duplicate$ "-" =
+      swap$ duplicate$ "," =
+      swap$ "+" =
+      or or
+    { #1 'multiresult := }
+    { t #2 global.max$ substring$ 't := }
+      if$
+    }
+  while$
+  multiresult
+}
+
+FUNCTION { format.pages }
+{
+  pages empty.or.unknown
+    { "" }
+    { "\bibinfo{pages}{"
+      pages multi.page.check
+        { pages n.dashify } % gnp - removed () % jtb: removed pp.
+        { pages }
+      if$
+      * "}" *
+    }
+  if$
+}
+
+FUNCTION { format.pages.check.without.articleno }
+{ %% format pages field only if articleno is absent
+  %% Stack out: pages-specification
+  numpages missing$ pages missing$ and
+    { "page numbers missing in both pages and numpages fields in " cite$ * 
warning$ }
+    { }
+  if$
+
+  articleno empty.or.unknown eid empty.or.unknown and
+    {
+      pages missing$
+        { numpages }
+        { format.pages }
+      if$
+    }
+    { "" }
+  if$
+}
+
+FUNCTION { format.pages.check }
+{
+  pages empty.or.unknown
+    { "page numbers missing in " cite$ * warning$ "" }
+    { pages n.dashify }
+  if$
+}
+
+FUNCTION { format.bookpages }
+{
+  bookpages empty.or.unknown
+    { "" }
+    { bookpages "book pages" tie.or.space.connect }
+  if$
+}
+
+FUNCTION { format.named.pages }
+{
+  pages empty.or.unknown
+    { "" }
+    { format.pages "pages" tie.or.space.connect }
+  if$
+}
+
+%
+% Changed by Boris Veytsman, 2011-03-13
+% Now the word "pages" is printed even if
+% there field pages is not empty.
+%
+
+FUNCTION { format.page.count }
+{
+  page.count empty.or.unknown
+    { "" }
+    { "\bibinfo{numpages}{" page.count * "}~pages" * }
+  if$
+}
+
+FUNCTION { format.articleno.numpages }
+{
+  %% There are seven possible outputs, depending on which fields are set.
+  %%
+  %% These four are handled here:
+  %%
+  %%     articleno, numpages, pages     -> "Article articleno-value, 
numpages-value pages"
+  %%     articleno, numpages            -> "Article articleno-value, 
numpages-value pages"
+  %%     articleno, pages               -> "Article articleno-value, 
reduced-pages-value pages"
+  %%     articleno                      -> "Article articleno-value" and warn 
about missing numpages
+  %%
+  %% The remaining three have already been handled by
+  %% format.pages.check.without.articleno:
+  %%
+  %%     numpages, pages                -> "pages-value"
+  %%     numpages                       -> "numpages-value"
+  %%     pages                          -> "pages-value"
+
+  articleno empty.or.unknown eid empty.or.unknown and
+    {
+      numpages empty.or.unknown
+        { }
+        { "numpages field, but no articleno or eid field, in "
+         cite$ * warning$ }
+      if$
+      ""
+    }
+    {
+      numpages empty.or.unknown
+        {
+          pages empty.or.unknown
+            {
+              "articleno or eid, but no pages or numpages field in "
+                cite$ * warning$
+              "" 'page.count :=
+            }
+            { reduce.pages.to.page.count }
+          if$
+        }
+        { numpages 'page.count := }
+      if$
+
+      %% The Article number is now handled in format.day.month.year because
+      %% ACM prefers the style "Digital Libraries 12, 3, Article 5 (July 2008)"
+      %% over "Digital Libraries 12, 3 (July 2008), Article 5"
+      %% format.articleno output
+      format.page.count
+    }
+  if$
+}
+
+FUNCTION {calc.format.page.count}
+{
+  numpages empty.or.unknown
+   {
+     pages empty.or.unknown
+        {
+        "" 'page.count :=
+        }
+        { reduce.pages.to.page.count }
+     if$
+   }
+   { numpages 'page.count := }
+  if$
+  format.page.count
+}
+
+
+
+FUNCTION { format.journal.volume.number.day.month.year }
+{
+  % By Young (and Spencer)
+  % GNP - fixed bugs with missing volume, number, and/or pages
+  %
+  % Format journal, volume, number, pages for article types.
+  %
+  journal empty.or.unknown
+    { "no journal in " cite$ * warning$
+      "" }
+%    { journal emphasize.with.italic.correction }
+     {
+       "\bibinfo{journal}{"
+           journal "Journal of the ACM" =
+       { "{\it J. ACM}" }
+       {
+           journal "American Mathematical Society Translations" =
+       { "{\it Amer. Math. Soc. Transl.}" }
+       {
+           journal "Bulletin of the American Mathematical Society" =
+       { "{\it Bull. Amer. Math. Soc.}" }
+       {
+           journal "Proceedings of the American Mathematical Society" =
+       { "{\it Proc. Amer. Math. Soc.}" }
+       {
+           journal "Transactions of the American Mathematical Society" =
+       { "{\it Trans. Amer. Math. Soc.}" }
+       {
+           journal "Communications of the {ACM}" =
+       { "{\it Commun. {ACM}}" }
+       {
+           journal "{ACM} Computing Surveys" =
+       { "{\it Comput. Surveys}" }
+       {
+           journal "{ACM} Transactions on Mathematical Software" =
+       { "{\it {ACM} Trans. Math. Software}" }
+       {
+           journal "{ACM} {SIGNUM} Newsletter" =
+       { "{\it {ACM} {SIGNUM} Newslett.}" }
+       {
+           journal "American Journal of Sociology" =
+       { "{\it Amer. J. Sociology}" }
+       {
+           journal "Journal of the American Statistical Association" =
+       { "{\it J. Amer. Statist. Assoc.}" }
+       {
+           journal "Applied Mathematics and Computation" =
+       { "{\it Appl. Math. Comput.}" }
+       {
+           journal "American Mathematical Monthly" =
+       { "{\it Amer. Math. Monthly}" }
+       {
+           journal "British Journal of Mathematical and Statistical 
Psychology" =
+       { "{\it Brit. J. Math. Statist. Psych.}" }
+       {
+           journal "Canadian Mathematical Bulletin" =
+       { "{\it Canad. Math. Bull.}" }
+       {
+           journal "Journal of Computational and Applied Mathematics" =
+       { "{\it J. Comput. Appl. Math.}" }
+       {
+           journal "Journal of Computational Physics" =
+       { "{\it J. Comput. Phys.}" }
+       {
+           journal "Computers and Structures" =
+       { "{\it Comput. \& Structures}" }
+       {
+           journal "The Computer Journal" =
+       { "{\it Comput. J.}" }
+       {
+           journal "Journal of Computer and System Sciences" =
+       { "{\it J. Comput. System Sci.}" }
+       {
+           journal "Contemporary Mathematics" =
+       { "{\it Contemp. Math.}" }
+       {
+           journal "Crelle's Journal" =
+       { "{\it Crelle's J.}" }
+       {
+           journal "Giornale di Mathematiche" =
+       { "{\it Giorn. Mat.}" }
+       {
+           journal "{IEEE} Transactions on Computers" =
+       { "{\it {IEEE} Trans. Comput.}" }
+       {
+           journal "{IEEE} Transactions on Automatic Control" =
+       { "{\it {IEEE} Trans. Automat. Control}" }
+       {
+           journal "Proceedings of the {IEEE}" =
+       { "{\it Proc. {IEEE}}" }
+       {
+           journal "{IEEE} Transactions on Aerospace and Electronic Systems" =
+       { "{\it {IEEE} Trans. Aerospace Electron. Systems}" }
+       {
+           journal "{IMA} Journal of Numerical Analysis" =
+       { "{\it {IMA} J. Numer. Anal.}" }
+       {
+           journal "Information Processing Letters" =
+       { "{\it Inform. Process. Lett.}" }
+       {
+           journal "Journal of the Institute of Mathematics and its 
Applications" =
+       { "{\it J. Inst. Math. Appl.}" }
+       {
+           journal "International Journal of Control" =
+       { "{\it Internat. J. Control}" }
+       {
+           journal "International Journal for Numerical Methods in 
Engineering" =
+       { "{\it Internat. J. Numer. Methods Engrg.}" }
+       {
+           journal "International Journal of Supercomputing Applications" =
+       { "{\it Internat. J. Supercomputing Applic.}" }
+       {
+           journal "Journal of Research of the National Bureau of Standards" =
+       { "{\it J. Res. Nat. Bur. Standards}" }
+       {
+           journal "Linear Algebra and its Applications" =
+       { "{\it Linear Algebra Appl.}" }
+       {
+           journal "Journal of Mathematical Analysis and Applications" =
+       { "{\it J. Math. Anal. Appl.}" }
+       {
+           journal "Mathematische Annalen" =
+       { "{\it Math. Ann.}" }
+       {
+           journal "Journal of Mathematical Physics" =
+       { "{\it J. Math. Phys.}" }
+       {
+           journal "Mathematics of Computation" =
+       { "{\it Math. Comp.}" }
+       {
+           journal "Mathematica Scandinavica" =
+       { "{\it Math. Scand.}" }
+       {
+           journal "Mathematical Tables and Other Aids to Computation" =
+       { "{\it Math. Tables Aids Comput.}" }
+       {
+           journal "Numerische Mathematik" =
+       { "{\it Numer. Math.}" }
+       {
+           journal "Pacific Journal of Mathematics" =
+       { "{\it Pacific J. Math.}" }
+       {
+           journal "Journal of Parallel and Distributed Computing" =
+       { "{\it J. Parallel and Distrib. Comput.}" }
+       {
+           journal "Parallel Computing" =
+       { "{\it Parallel Comput.}" }
+       {
+           journal "Philosophical Magazine" =
+       { "{\it Philos. Mag.}" }
+       {
+           journal "Proceedings of the National Academy of Sciences of the 
USA" =
+       { "{\it Proc. Nat. Acad. Sci. U. S. A.}" }
+       {
+           journal "Quarterly Journal of Mathematics, Oxford, Series (2)" =
+       { "{\it Quart. J. Math. Oxford Ser. (2)}" }
+       {
+           journal "Quarterly of Applied Mathematics" =
+       { "{\it Quart. Appl. Math.}" }
+       {
+           journal "Review of the International Statisical Institute" =
+       { "{\it Rev. Inst. Internat. Statist.}" }
+       {
+           journal "Journal of the Society for Industrial and Applied 
Mathematics" =
+       { "{\it J. Soc. Indust. Appl. Math.}" }
+       {
+           journal "Journal of the Society for Industrial and Applied 
Mathematics, Series B, Numerical Analysis" =
+       { "{\it J. Soc. Indust. Appl. Math. Ser. B Numer. Anal.}" }
+       {
+           journal "{SIAM} Journal on Algebraic and Discrete Methods" =
+       { "{\it {SIAM} J. Algebraic Discrete Methods}" }
+       {
+           journal "{SIAM} Journal on Applied Mathematics" =
+       { "{\it {SIAM} J. Appl. Math.}" }
+       {
+           journal "{SIAM} Journal on Computing" =
+       { "{\it {SIAM} J. Comput.}" }
+       {
+           journal "{SIAM} Journal on Matrix Analysis and Applications" =
+       { "{\it {SIAM} J. Matrix Anal. Appl.}" }
+       {
+           journal "{SIAM} Journal on Numerical Analysis" =
+       { "{\it {SIAM} J. Numer. Anal.}" }
+       {
+           journal "{SIAM} Review" =
+       { "{\it {SIAM} Rev.}" }
+       {
+           journal "{SIAM} Journal on Scientific and Statistical Computing" =
+       { "{\it {SIAM} J. Sci. Statist. Comput.}" }
+       {
+           journal "Software Practice and Experience" =
+       { "{\it Software Prac. Experience}" }
+       {
+           journal "Statistical Science" =
+       { "{\it Statist. Sci.}" }
+       {
+           journal "{USSR} Computational Mathematics and Mathematical Physics" 
=
+       { "{\it {U. S. S. R.} Comput. Math. and Math. Phys.}" }
+       {
+           journal "Journal of {VLSI} and Computer Systems" =
+       { "{\it J. {VLSI} Comput. Syst.}" }
+       {
+           journal "Zeitschrift fur Angewandte Mathematik und Mechanik" =
+       { "{\it Z. Angew. Math. Mech.}" }
+       {
+           journal "Zeitschrift fur Angewandte Mathematik und Physik" =
+       { "{\it Z. Angew. Math. Phys.}" }
+       {
+           journal "ACM Computing Surveys" =
+       { "{\it Comput. Surveys}" }
+       {
+           journal "ACM Transactions on Mathematical Software" =
+       { "{\it ACM Trans. Math. Software}" }
+       {
+           journal "ACM {SIGNUM} Newsletter" =
+       { "{\it ACM {SIGNUM} Newslett.}" }
+       {
+           journal "IEEE Transactions on Computers" =
+       { "{\it IEEE Trans. Comput.}" }
+       {
+           journal "IEEE Transactions on Automatic Control" =
+       { "{\it IEEE Trans. Automat. Control}" }
+       {
+           journal "Proceedings of the IEEE" =
+       { "{\it Proc. IEEE}" }
+       {
+           journal "IEEE Transactions on Aerospace and Electronic Systems" =
+       { "{\it IEEE Trans. Aerospace Electron. Systems}" }
+       {
+           journal "IMA Journal of Numerical Analysis" =
+       { "{\it IMA J. Numer. Anal.}" }
+       {
+           journal "SIAM Journal on Algebraic and Discrete Methods" =
+       { "{\it SIAM J. Algebraic Discrete Methods}" }
+       {
+           journal "SIAM Journal on Applied Mathematics" =
+       { "{\it SIAM J. Appl. Math.}" }
+       {
+           journal "SIAM Journal on Computing" =
+       { "{\it SIAM J. Comput.}" }
+       {
+           journal "SIAM Journal on Matrix Analysis and Applications" =
+       { "{\it SIAM J. Matrix Anal. Appl.}" }
+       {
+           journal "SIAM Journal on Numerical Analysis" =
+       { "{\it SIAM J. Numer. Anal.}" }
+       {
+           journal "SIAM Review" =
+       { "{\it SIAM Rev.}" }
+       {
+           journal "SIAM Journal on Scientific and Statistical Computing" =
+       { "{\it SIAM J. Sci. Statist. Comput.}" }
+       {
+           journal "USSR Computational Mathematics and Mathematical Physics" =
+       { "{\it U. S. S. R. Comput. Math. and Math. Phys.}" }
+       {
+           journal "Journal of VLSI and Computer Systems" =
+       { "{\it J. VLSI Comput. Syst.}" }
+       {
+           journal "Communications of the ACM" =
+       { "{\it Commun. ACM}" }
+       %% If no match with cases needing special handling, just output journal 
name
+       {  journal emphasize.with.italic.correction  }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+           }
+     if$
+     * "}" *
+         }
+    if$
+
+  number empty.or.unknown
+    {
+      volume empty.or.unknown
+        { "no number and no volume in " cite$ * warning$ "" * }
+        { " " * " \bibinfo{volume}{" * volume * "}" * }
+      if$
+    }
+    {
+      volume empty.or.unknown
+        {
+          "unusual to have number, but no volume, for " cite$ * warning$
+          " \bibinfo{number}{" * number * "}" *
+        }
+        { " \bibinfo{volume}{" * volume  * "}, \bibinfo{number}{" *
+          number * "}" *}
+      if$
+    }
+  if$
+  after.block 'output.state :=
+
+  % Sometimes proceedings are published in journals
+  % In this case we do not want to put year, day and month here
+
+  type$ "inproceedings" =
+    { }
+    {format.day.month.year * }
+  if$
+}
+
+FUNCTION { format.chapter.pages }
+{
+  chapter empty.or.unknown
+    'format.pages
+    { type empty.or.unknown
+        { "Chapter" } % gnp - changed to mixed case
+        { type "t" change.case$ }
+      if$
+      chapter tie.or.space.connect
+      pages empty.or.unknown
+        {"page numbers missing in " cite$ * warning$} % gnp - added check
+        { ", " * format.pages * }
+      if$
+    }
+  if$
+}
+
+FUNCTION { format.in.emphasize.booktitle }
+{ % jtb: format for collections or proceedings not appearing in a journal
+  booktitle empty.or.unknown
+  { "" }
+  { "In " format.emphasize.booktitle * }
+  if$
+}
+
+FUNCTION { format.in.booktitle }
+{ % jtb: format for proceedings appearing in a journal
+  booktitle empty.or.unknown
+  { "" }
+  { "In \bibinfo{booktitle}{" booktitle * "}" * }
+  if$
+}
+
+FUNCTION { format.in.ed.booktitle }
+{
+  booktitle empty.or.unknown
+  { "" }
+  { editor empty.or.unknown
+    { "In " format.emphasize.booktitle * }
+                % jtb: swapped editor location
+    { "In " format.emphasize.booktitle * ", " * format.editors.fml * }
+    if$
+  }
+  if$
+}
+
+FUNCTION { format.thesis.type }
+{ % call with default type on stack top
+  type empty.or.unknown
+    'skip$    % use default type
+    {
+      pop$    % discard default type
+      % NO: it is silly to have to brace protect every degree type!:  type "t" 
change.case$
+      type
+    }
+  if$
+}
+
+FUNCTION { format.tr.number }
+{
+  "\bibinfo{type}{"
+  type empty.or.unknown
+    { "{T}echnical {R}eport" }
+    'type
+  if$
+  "}" * *
+  number empty.or.unknown
+    { "t" change.case$ }
+    %% LOOKS BAD: { "." * number tie.or.space.connect }
+    %% Prefer "Research report RJ687." to "Research report. RJ687."
+    { number tie.or.space.connect }
+  if$
+}
+
+FUNCTION { format.advisor }
+{
+  advisor empty.or.unknown
+    { "" }
+    { "Advisor(s) " advisor * }
+  if$
+}
+
+FUNCTION { format.article.crossref }
+{ "See"
+  "\citeN{" * crossref * "}" *
+}
+
+FUNCTION { format.crossref.editor }
+{
+  editor #1 "{vv~}{ll}" format.name$
+  editor num.names$ duplicate$
+  #2 >
+    { pop$ " et~al\mbox{.}" * }         % jrh: avoid spacing problems
+    { #2 <
+    'skip$
+    { editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
+        { " et~al\mbox{.}" * }          % jrh: avoid spacing problems
+        { " and " * editor #2 "{vv~}{ll}" format.name$ * }
+      if$
+    }
+      if$
+    }
+  if$
+}
+
+FUNCTION { format.book.crossref }
+{
+  volume empty.or.unknown
+    { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
+      "In "
+    }
+    { "Volume" volume tie.or.space.connect % gnp - changed to mixed case
+      " of " *
+    }
+  if$
+  editor empty.or.unknown
+  editor field.or.null author field.or.null =
+  or
+    { key empty.or.unknown
+    { series empty.or.unknown
+        { "need editor, key, or series for " cite$ * " to crossref " *
+          crossref * warning$
+          "" *
+        }
+        { "{\em " * series * "\/}" * }
+      if$
+    }
+    { key * }
+      if$
+    }
+    { format.crossref.editor * }
+  if$
+  " \citeN{" * crossref * "}" *
+}
+
+FUNCTION { format.incoll.inproc.crossref }
+{ "See"
+  " \citeN{" * crossref * "}" *
+}
+
+FUNCTION { format.lab.names }
+{
+  % format.lab.names:
+  %
+  % determines "short" names for the abbreviated author information.
+  % "Long" labels are created in calc.label, using the routine my.full.label
+  % to format author and editor fields.
+  %
+  % There are 4 cases for labels.   (n=3 in the example)
+  % a) one author             Foo
+  % b) one to n               Foo, Bar and Baz
+  % c) use of "and others"    Foo, Bar et al.
+  % d) more than n            Foo et al.
+
+  's :=
+  s num.names$ 'numnames :=
+  numnames #2 >    % change number to number of others allowed before
+                   % forcing "et al".
+    { s #1 "{vv~}{ll}" format.name$ " et~al\mbox{.}" * } % jrh: \mbox{} added
+    {
+      numnames #1 - 'namesleft :=
+      #2 'nameptr :=
+      s #1 "{vv~}{ll}" format.name$
+        { namesleft #0 > }
+        { nameptr numnames =
+            { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
+                { " et~al\mbox{.}" * }          % jrh: avoid spacing problems
+                { " and " * s nameptr "{vv~}{ll}" format.name$ * }
+              if$
+            }
+            { ", " * s nameptr "{vv~}{ll}" format.name$ * }
+          if$
+          nameptr #1 + 'nameptr :=
+          namesleft #1 - 'namesleft :=
+        }
+      while$
+    }
+  if$
+}
+
+FUNCTION { author.key.label }
+{
+  author empty.or.unknown
+    { key empty.or.unknown
+          { "no key, author in " cite$ * warning$
+            cite$ #1 #3 substring$ }
+         'key
+      if$
+    }
+    { author format.lab.names }
+  if$
+}
+
+FUNCTION { editor.key.organization.label }
+{ % added - gnp. Provide label formatting by organization if editor is null.
+  editor empty.or.unknown
+    { organization empty.or.unknown
+        { key empty.or.unknown
+            { "no key, editor or organization in " cite$ * warning$
+              cite$ #1 #3 substring$ }
+            'key
+          if$
+        }
+        { organization }
+      if$
+    }
+    { editor format.lab.names }
+  if$
+}
+
+FUNCTION { author.editor.key.label }
+{
+  author empty.or.unknown
+    { editor empty.or.unknown
+          { key empty.or.unknown
+               { "no key, author, or editor in " cite$ * warning$
+                 cite$ #1 #3 substring$ }
+             'key
+           if$
+         }
+          { editor format.lab.names }
+      if$
+    }
+    { author format.lab.names }
+  if$
+}
+
+FUNCTION { author.editor.key.organization.label }
+{ % added - gnp. Provide label formatting by organization if author is null.
+  author empty.or.unknown
+    { editor empty.or.unknown
+        { organization empty.or.unknown
+            { key empty.or.unknown
+               { "no key, author, editor or organization in " cite$ * warning$
+                 cite$ #1 #3 substring$ }
+               'key
+              if$
+            }
+            { organization }
+          if$
+        }
+        { editor format.lab.names }
+      if$
+    }
+    { author format.lab.names }
+  if$
+}
+
+FUNCTION { calc.basic.label }
+{
+  type$ "book" =
+  type$ "inbook" =
+  or
+  type$ "article" =
+  or
+    'author.editor.key.label
+    { type$ "proceedings" =
+      type$ "periodical" =
+      or
+        'editor.key.organization.label
+        { type$ "manual" =
+            'author.editor.key.organization.label
+            'author.key.label
+          if$
+        }
+      if$
+    }
+  if$
+}
+
+FUNCTION { calc.label }
+{
+  % Changed - GNP. See also author.editor.organization.sort, 
editor.organization.sort
+  % Form label for BibTeX entry. The classification of which fields are used
+  % for which type of entry (book, inbook, etc.) are taken from alpha.bst.
+  % The change here from newapa is to also include organization as a
+  % citation label if author or editor is missing.
+
+  calc.basic.label
+
+  author empty.or.unknown  % generate the full label citation information.
+    {
+      editor empty.or.unknown
+        {
+          organization empty.or.unknown
+            {
+              key empty.or.unknown
+                {
+                  "no author, editor, organization, or key in " cite$ * 
warning$
+                  "??"
+                }
+                { key }
+              if$
+            }
+            { organization }
+          if$
+        }
+        { editor my.full.label }
+      if$
+    }
+    { author my.full.label }
+  if$
+
+  % leave label on the stack, to be popped when required.
+
+  "}{" * swap$ * "}{" *
+  %  year field.or.null purify$ #-1 #4 substring$ *
+  %
+  % save the year for sort processing afterwards (adding a, b, c, etc.)
+  %
+  year field.or.null purify$ #-1 #4 substring$
+  'label.year :=
+}
+
+
+FUNCTION { output.bibitem }
+{
+  newline$
+  "\bibitem[\protect\citeauthoryear{" write$
+  calc.label write$
+  sort.year write$
+  "}]%" writeln
+  "        {" write$
+  cite$ write$
+  "}" writeln
+  ""
+  before.all 'output.state :=
+}
+
+
+FUNCTION { output.issue.doi.coden.isxn.lccn.url.eprint }
+{ % enter and return with stack empty
+  %% We switch now from buffered output to output of complete lines, so
+  %% that the Issue .. URL data have their own lines, and are less likely
+  %% to be line-wrapped by BibTeX's short-sighted algorithm, which wraps
+  %% lines longer than 79 characters, backtracking to what it thinks is
+  %% a break point in the string.  Any such wrapping MUST be undone to
+  %% prevent percent-newline from appearing in DOIs and URLs.  The
+  %% output data are intentionally wrapped in \showxxx{} macros at
+  %% beginning of line, and that supply their own punctuation (if they
+  %% are not defined to suppress output entirely), to make it easier for
+  %% other software to recover them from .bbl files.
+  %%
+  %% It also makes it possible to later change the macro definitions
+  %% to suppress particular output values, or alter their appearance.
+  %%
+  %% Note that it is possible for theses, technical reports, and
+  %% manuals to have ISBNs, and anything that has an ISBN may also
+  %% have an ISSN.  When there are no values for these keys, there
+  %% is no output generated for them here.
+
+  "\newblock" writeln
+  after.block 'output.state :=
+
+  output.issue
+  output.isbn
+  output.coden  % CODEN is functionally like ISSN, so output them sequentially
+  output.issn
+  output.lccn
+  output.doi    % DOI is ALWAYS last according to CrossRef DOI documentation
+  output.eprint
+  output.url    % but ACM wants URL last
+}
+
+FUNCTION { output.issue.doi.coden.isxn.lccn.url.eprint.note }
+{ % enter with stack empty, return with empty string on stack
+  output.issue.doi.coden.isxn.lccn.url.eprint
+  note empty.or.unknown
+    { }
+    {
+      "\newblock" writeln
+      output.note
+    }
+  if$
+  ""
+}
+
+FUNCTION { output.issue.doi.coden.isxn.lccn.url.eprint.note.check }
+{ % enter with stack empty, return with empty string on stack
+  output.issue.doi.coden.isxn.lccn.url.eprint
+  note empty.or.unknown
+    { }
+    {
+      "\newblock" writeln
+      output.note.check
+    }
+  if$
+  ""
+}
+
+FUNCTION { article }
+{
+  output.bibitem
+
+  author empty.or.unknown
+    {
+      editor empty.or.unknown
+        { "neither author and editor supplied for " cite$ * warning$ }
+        { format.editors "editor" output.check }
+      if$
+    }
+    { format.authors "author" output.check }
+  if$
+
+  author format.no.key output       % added
+  output.year.check                 % added
+  new.block
+  format.articletitle "title" output.check
+  new.block
+  howpublished empty.or.unknown
+    { }
+    { "\bibinfo{howpublished}{" howpublished "}" * * output }
+  if$
+
+  crossref missing$
+    { format.journal.volume.number.day.month.year output}
+    {
+      "cross reference in @Article{...} is unusual" warning$
+      format.article.crossref output.nonnull
+    }
+  if$
+
+  format.pages.check.without.articleno output
+  format.articleno.numpages output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { book }
+{
+  output.bibitem
+  author empty.or.unknown
+    { format.editors "author and editor" output.check }
+    { format.authors output.nonnull
+      crossref missing$
+        { "author and editor" editor either.or.check }
+        'skip$
+      if$
+    }
+  if$
+  output.year.check       % added
+  new.block
+  format.btitle "title" output.check
+  crossref missing$
+    { new.sentence              % jtb: start a new sentence for series/volume
+      format.bvolume output
+      new.block
+      format.number.series output
+      new.sentence
+      publisher "publisher" bibinfo.output.check
+      address "address" bibinfo.output.check    % jtb: require address
+      fin.sentence
+      pages empty.or.unknown
+        { format.bookpages }    % use bookpages when pages empty
+        { format.pages.check "pages" tie.or.space.connect }
+      if$
+      output
+    }
+    { new.block
+      format.book.crossref output.nonnull
+    }
+  if$
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { booklet }
+{
+  output.bibitem
+  format.authors output
+  author format.key output          % added
+  output.year.check                 % added
+  new.block
+  format.title "title" output.check
+  new.block
+    howpublished empty.or.unknown
+    { }
+    { "\bibinfo{howpublished}{" howpublished "}" * * output }
+  if$
+  address output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { inbook }
+{
+  output.bibitem
+  author empty.or.unknown
+    { format.editors
+      "author and editor" output.check
+    }
+    { format.authors output.nonnull
+      crossref missing$
+    { "author and editor" editor either.or.check }
+    'skip$
+      if$
+    }
+  if$
+  output.year.check                 % added
+  new.block
+  format.btitle "title" output.check
+  crossref missing$
+    { new.sentence              % jtb: start a new sentence for series/volume
+      format.bvolume output
+      new.block
+      format.number.series output
+      new.sentence
+      publisher "publisher" bibinfo.output.check
+      address "address" bibinfo.output.check    % jtb: require address
+      format.bookpages output
+      format.chapter.pages
+      "chapter and pages" output.check  % jtb: moved from before publisher
+    }
+    {
+      format.bookpages output
+      format.chapter.pages "chapter and pages" output.check
+      new.block
+      format.book.crossref output.nonnull
+    }
+  if$
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { incollection }
+{
+  output.bibitem
+  format.authors "author" output.check
+  author format.key output       % added
+  output.year.check              % added
+  new.block
+  format.articletitle "title" output.check
+  new.block
+  crossref missing$
+    { format.in.ed.booktitle "booktitle" output.check
+      new.sentence                % jtb: start a new sentence for series/volume
+      format.bvolume output
+      format.number.series output
+      new.sentence
+      publisher "publisher" bibinfo.output.check
+      address "address" bibinfo.output.check      % jtb: require address
+      format.bookpages output
+      format.chapter.pages output % gnp - was special.output.nonnull
+                                  % left out comma before page numbers
+                                  % jtb: moved from before publisher
+    }
+    {
+      format.incoll.inproc.crossref output.nonnull
+      format.chapter.pages output
+    }
+  if$
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { inproceedings }
+{
+  output.bibitem
+  format.authors "author" output.check
+  author format.key output            % added
+  output.year.check                   % added
+  new.block
+  format.articletitle "title" output.check
+  howpublished empty.or.unknown
+    { }
+    { "\bibinfo{howpublished}{" howpublished "}" * * output.dot.space }
+  if$
+  crossref missing$
+    {
+      journal missing$          % jtb: proceedings appearing in journals
+        { format.in.emphasize.booktitle format.city "booktitle"  
output.check.dot.space
+          format.series output.removenospace
+          format.editors.fml output % BV 2011/09/27 Moved dot to comma
+          format.bvolume.noseries output
+          new.sentence
+          organization output
+          publisher "publisher" bibinfo.output.check % jtb: require publisher 
(?)
+          address "address" bibinfo.output.check  % jtb: require address
+          format.bookpages output
+        }
+        {
+           format.in.booktitle format.city "booktitle" output.check
+           format.editors.fml output
+           new.sentence
+           format.journal.volume.number.day.month.year output
+        }
+      if$
+      format.articleno output
+      format.pages.check.without.articleno output
+    }
+    {
+      format.incoll.inproc.crossref output.nonnull
+      format.articleno output
+      format.pages.check.without.articleno output
+    }
+  if$
+  format.articleno.numpages output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { conference } { inproceedings }
+
+FUNCTION { manual }
+{
+  output.bibitem
+  author empty.or.unknown
+    { editor empty.or.unknown
+      { organization "organization" output.check
+        organization format.key output }  % if all else fails, use key
+      { format.editors "author and editor" output.check }
+      if$
+    }
+    { format.authors output.nonnull }
+    if$
+  output.year.check                 % added
+  new.block
+  format.btitle "title" output.check
+  organization address new.block.checkb
+  % jtb: back to normal style: organization, address
+  organization "organization" output.check
+  address output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { mastersthesis }
+{
+  output.bibitem
+  format.authors "author" output.check
+  author format.key output          % added
+  output.year.check                 % added
+  new.block
+  format.title emphasize "title" output.check  % NB: ACM style requires 
emphasized thesis title
+  new.block
+  "\bibinfo{thesistype}{Master's\ thesis}" format.thesis.type output
+  new.sentence
+  school "school" bibinfo.output.check
+  address empty.or.unknown
+     { }
+     { "\bibinfo{address}{" address * "}" * output }
+  if$
+  new.block
+  format.advisor output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { misc }
+{
+  output.bibitem
+  format.authors output
+  author format.key output            % added
+  output.year.check                   % added
+  title howpublished new.block.checkb
+  format.title output
+  new.block
+  howpublished empty.or.unknown
+    { }
+    { "\bibinfo{howpublished}{" howpublished "}" * * output }
+  if$
+  "" output.nonnull.dot.space
+  output.day.month.year
+  calc.format.page.count output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { online } { misc }
+
+FUNCTION { game } { misc }
+
+
+FUNCTION { phdthesis }
+{
+  output.bibitem
+  format.authors "author" output.check
+  author format.key output          % added
+  output.year.check                 % added
+  new.block
+  format.title emphasize "title" output.check  % NB: ACM style requires 
emphasized thesis title
+  new.block
+  "\bibinfo{thesistype}{Ph.D. Dissertation}" format.thesis.type output
+  new.sentence
+  school "school" bibinfo.output.check
+  address empty.or.unknown
+     { }
+     { "\bibinfo{address}{" address * "}" * output }
+  if$
+  new.block
+  format.advisor output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION {format.date}
+{ year empty.or.unknown
+    { month empty.or.unknown
+        {
+          ""                    % output empty date if year/month both empty
+          day empty.or.unknown
+            {  }
+            { "there's a day but no month or year in " cite$ * warning$ }
+          if$
+        }
+        { "there's a month but no year in " cite$ * warning$
+          month
+          day empty.or.unknown
+            { }
+            { " " * day * }
+          if$
+        }
+      if$
+    }
+    { month empty.or.unknown
+        {
+          year                  % output only year if month empty
+          day empty.or.unknown
+            {  }
+            { "there's a day and year but no month in " cite$ * warning$ }
+          if$
+        }
+        {
+          month " " *
+          day empty.or.unknown
+            { }
+            { day * ", " * }
+          if$
+          year *
+        }
+      if$
+    }
+  if$
+}
+
+FUNCTION {new.block.checka}
+{
+  empty.or.unknown
+    'skip$
+    'new.block
+  if$
+}
+
+FUNCTION { periodical }
+{
+  output.bibitem
+  editor empty.or.unknown
+    { organization output }
+    { format.editors output.nonnull }
+  if$
+  new.block
+  output.year.check
+  new.sentence
+  format.articletitle "title" output.check
+  format.journal.volume.number.day.month.year output
+  calc.format.page.count output
+  fin.entry
+}
+
+FUNCTION { proceedings }
+{
+  output.bibitem
+  editor empty.or.unknown
+    { organization output
+      organization format.key output }  % gnp - changed from author format.key
+    { format.editors output.nonnull }
+  if$
+  % author format.key output             % gnp - removed (should be either
+  %                                        editor or organization
+  output.year.check                    % added (newapa)
+  new.block
+  format.btitle format.city "title" output.check        % jtb: added city
+  new.sentence
+  format.bvolume output
+  format.number.series output
+  new.sentence
+  organization output
+  % jtb: normal order: publisher, address
+  publisher empty.or.unknown
+     { }
+     { "\bibinfo{publisher}{" publisher * "}" * output }
+  if$
+  address empty.or.unknown
+     { }
+     { "\bibinfo{address}{" address * "}" * output }
+  if$
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { techreport }
+{
+  output.bibitem
+  format.authors "author" output.check
+  author format.key output             % added
+  output.year.check                    % added
+  new.block
+  format.btitle "title" output.check
+  new.block
+%   format.tr.number output               % jtb: moved month ...
+  format.tr.number output new.sentence    % Gerry  - need dot 2011/09/28
+  institution "institution" bibinfo.output.check
+  address empty.or.unknown
+    { }
+    { "\bibinfo{address}{" address "}" * * output }
+  if$
+  new.sentence
+  format.named.pages output
+  % ACM omits year at end in transactions style
+  % format.day.month.year output.nonnull.dot.space  % jtb: ... to here (no 
parens)
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note
+  fin.entry
+}
+
+FUNCTION { unpublished }
+{
+  output.bibitem
+  format.authors
+  "author" output.check
+  author format.key output              % added
+  output.year.check                     % added
+  new.block
+  format.title "title" output.check
+  fin.sentence
+  output.day.month.year                 % UTAH
+  calc.format.page.count output
+  fin.block
+  output.issue.doi.coden.isxn.lccn.url.eprint.note.check
+  fin.entry
+}
+
+FUNCTION { default.type } { misc }
+
+%%% ACM journal-style month definitions: full name if 1--5 letters, else
+%%% abbreviation of 3 or 4 characters and a dot
+
+MACRO {jan}             {"Jan."}
+
+MACRO {feb}             {"Feb."}
+
+MACRO {mar}             {"March"}
+
+MACRO {apr}             {"April"}
+
+MACRO {may}             {"May"}
+
+MACRO {jun}             {"June"}
+
+MACRO {jul}             {"July"}
+
+MACRO {aug}             {"Aug."}
+
+MACRO {sep}             {"Sept."}
+
+MACRO {oct}             {"Oct."}
+
+MACRO {nov}             {"Nov."}
+
+MACRO {dec}             {"Dec."}
+
+
+%%% ====================================================================
+%%%                 I M P O R T A N T   C H A N G E
+%%%
+%%% For the 2009 release of the official acm-*.bst files, there are to
+%%% be NO predefined journal abbreviations in those style files.
+%%%
+%%% ACM may later develop an official list of mappings of full journal
+%%% names of commonly-cited journals to ACM-preferred abbreviations, but
+%%% authors should consider that use of any of these commented-out
+%%% abbreviations is DEPRECATED unless the BibTeX file itself provides
+%%% its own @String{name = "value"} definitions.
+%%%
+%%% Use of journal (and publisher and address) @String{...}
+%%% abbreviations, as opposed to explicit value assignments such as
+%%% journal = "J. ACM" and publisher = "IEEE", is preferred in
+%%% bibliographic databases, because it makes it easier for journal
+%%% production staff to replace those definitions by publisher-preferred
+%%% abbreviations when articles are typeset for publication.
+%%%
+%%% For historical reasons, and because some of these abbreviations are
+%%% used in other (non-ACM) bibliography style files, they are preserved
+%%% here in comments.  Future releases of the acm*-.bst files are likely
+%%% to remove them entirely.
+%%% ====================================================================
+%%%
+%%% DEPRECATED: MACRO {acmcs}           {"ACM Comput. Surv."}                  
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {acmlett}         {"ACM Lett. Program. Lang. Syst."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {acta}            {"Acta Inf."}                          
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ai}              {"Artificial Intelligence"}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {al}              {"Ada Lett."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {acr}             {"Adv. Comput. Res."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {bit}             {"Bit"}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {cacm}            {"Commun. ACM"}                        
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {cj}              {"Comput. J."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {cn}              {"Comput. Netw."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {cl}              {"Comput. Lang."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ibmjrd}          {"IBM J. Res. and Development"}        
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ibmsj}           {"IBM Systems Journal"}                
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ict}             {"Inf. Contr."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieebcs}          {"IEE/BCS Softw. Eng. J."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieees}           {"IEEE Softw."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieeese}          {"IEEE Trans. Softw. Eng."}            
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieeetc}          {"IEEE Trans. Comput."}                
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieeetcad}        {"IEEE Transactions on Computer-Aided 
Design of Integrated Circuits"} % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieeetpds}        {"IEEE Trans. Parall. Distrib. Syst."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ieeetit}         {"IEEE Trans. Inf. Theory"}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ipl}             {"Inf. Process. Lett."}                
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {icp}             {"Inf. Comput."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ist}             {"Inf. Softw. Tech."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ijsa}            {"Int. J. Supercomput. Appl."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ijpp}            {"Int. J. Parallel Program."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jacm}            {"J. ACM"}                             
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: % MACRO {jcss}          {"Journal of Computer and System 
Sciences"} % original BibTeX
+%%% DEPRECATED: MACRO {jcss}            {"J. Comput. Syst. Sci."}              
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jlp}             {"J. Logic Program."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jfp}             {"J. Funct. Program."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jsmrp}           {"J. Softw. Maint. Res. Pract."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jss}             {"J. Syst. Softw."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jlc}             {"J. Logic and Comput."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {jlsc}            {"J. Lisp Symb. Comput."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {lpls}            {"Lett. Program. Lang. Syst."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {mor}             {"Math. Oper. Res."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {mscs}            {"Math. Struct. Comput. Sci."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {mst}             {"Math. Syst. Theor."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {ngc}             {"New Gen. Comput."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {scp}             {"Sci. Comput. Program."}              
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {sicomp}          {"SIAM J. Comput."}                    
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {spe}             {"Softw. Pract. Exper."}
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {tocs}            {"ACM Trans. Comput. Syst."}           
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {tods}            {"ACM Trans. Database Syst."}          
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {tog}             {"ACM Trans. Graphics"}                
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {toms}            {"ACM Trans. Math. Softw."}            
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {toois}           {"ACM Trans. Office Inf. Syst."}       
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {toplas}          {"ACM Trans. Program. Lang. Syst."}    
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {tcs}             {"Theor. Comput. Sci."}                
 % original BibTeX
+%%% DEPRECATED:
+%%% DEPRECATED: MACRO {tr}              {"Tech. Rep."}
+%%% ====================================================================
+
+READ
+
+FUNCTION { sortify }
+{
+  purify$
+  "l" change.case$
+}
+
+FUNCTION { chop.word }
+{
+  's :=
+  'len :=
+  s #1 len substring$ =
+    { s len #1 + global.max$ substring$ }
+    's
+  if$
+}
+
+FUNCTION { sort.format.names }
+{
+  's :=
+  #1 'nameptr :=
+  ""
+  s num.names$ 'numnames :=
+  numnames 'namesleft :=
+    { namesleft #0 > }
+    { nameptr #1 >
+          { "   " * }
+         'skip$
+      if$
+  %      s nameptr "{ff{ } }{ll{ }}{  vv{ }}{  jj{ }}" format.name$ 't :=
+      s nameptr "{vv{ } }{ll{ }}{  f{ }}{  jj{ }}" format.name$ 't :=
+      nameptr numnames = t "others" = and
+          { " et~al" * }
+          { t sortify * }
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft :=
+    }
+  while$
+}
+
+FUNCTION { sort.format.title }
+{
+  't :=
+  "A " #2
+    "An " #3
+      "The " #4 t chop.word
+    chop.word
+  chop.word
+  sortify
+  #1 global.max$ substring$
+}
+
+FUNCTION { author.sort }
+{
+  author empty.or.unknown
+    { key empty.or.unknown
+         { "to sort, need author or key in " cite$ * warning$
+           "" }
+         { key sortify }
+      if$
+    }
+    { author sort.format.names }
+  if$
+}
+
+FUNCTION { author.editor.sort }
+{
+  author empty.or.unknown
+    {
+      editor empty.or.unknown
+         {
+           key empty.or.unknown
+             { "to sort, need author, editor, or key in " cite$ * warning$
+               ""
+             }
+             { key sortify }
+           if$
+         }
+         { editor sort.format.names }
+      if$
+    }
+    { author sort.format.names }
+  if$
+}
+
+FUNCTION { editor.organization.sort }
+{
+  % added - GNP. Stack editor or organization for sorting (from alpha.bst).
+  % Unlike alpha.bst, we need entire names, not abbreviations
+
+  editor empty.or.unknown
+    { organization empty.or.unknown
+        { key empty.or.unknown
+            { "to sort, need editor, organization, or key in " cite$ * warning$
+              ""
+            }
+            { key sortify }
+          if$
+        }
+        { organization sortify }
+      if$
+    }
+    { editor sort.format.names }
+  if$
+}
+
+FUNCTION { author.editor.organization.sort }
+{
+  % added - GNP. Stack author or organization for sorting (from alpha.bst).
+  % Unlike alpha.bst, we need entire names, not abbreviations
+
+  author empty.or.unknown
+    {
+      editor empty.or.unknown
+        { organization empty.or.unknown
+            { key empty.or.unknown
+                { "to sort, need author, editor, or key in " cite$ * warning$
+                ""
+                }
+                { key sortify }
+              if$
+            }
+            { organization sortify }
+          if$
+        }
+        { editor sort.format.names }
+      if$
+    }
+    { author sort.format.names }
+  if$
+}
+
+FUNCTION { presort }
+{
+  % Presort creates the bibentry's label via a call to calc.label, and then
+  % sorts the entries based on entry type. Chicago.bst adds support for
+  % including organizations as the sort key; the following is stolen from
+  % alpha.bst.
+
+  calc.label sortify % recalculate bibitem label
+  year field.or.null purify$ #-1 #4 substring$ * % add year
+  "    "
+  *
+  type$ "book" =
+  type$ "inbook" =
+  or
+  type$ "article" =
+  or
+    'author.editor.sort
+    { type$ "proceedings" =
+      type$ "periodical" =
+      or
+        'editor.organization.sort
+        { type$ "manual" =
+            'author.editor.organization.sort
+            'author.sort
+          if$
+        }
+      if$
+    }
+  if$
+  #1 entry.max$ substring$        % added for newapa
+  'sort.label :=                  % added for newapa
+  sort.label                      % added for newapa
+  *
+  "    "
+  *
+  title field.or.null
+  sort.format.title
+  *
+  #1 entry.max$ substring$
+  'sort.key$ :=
+}
+
+ITERATE { presort }
+
+SORT             % by label, year, author/editor, title
+
+FUNCTION { initialize.extra.label.stuff }
+{ #0 int.to.chr$ 'last.label :=
+  "" 'next.extra :=
+  #0 'last.extra.num :=
+}
+
+FUNCTION { forward.pass }
+{
+  % Pass through all entries, comparing current entry to last one.
+  % Need to concatenate year to the stack (done by calc.label) to determine
+  % if two entries are the same (see presort)
+
+  last.label
+  % OLD:calc.label year field.or.null purify$ #-1 #4 substring$ * % add year
+  % NEW:
+  calc.basic.label year field.or.null purify$ #-1 #4 substring$ * % add year
+  #1 entry.max$ substring$ =     % are they equal?
+     { last.extra.num #1 + 'last.extra.num :=
+       last.extra.num int.to.chr$ 'extra.label :=
+     }
+     { "a" chr.to.int$ 'last.extra.num :=
+       "" 'extra.label :=
+       % OLD: calc.label year field.or.null purify$ #-1 #4 substring$ * % add 
year
+       % NEW:
+       calc.basic.label year field.or.null purify$ #-1 #4 substring$ * % add 
year
+       #1 entry.max$ substring$ 'last.label := % assign to last.label
+     }
+  if$
+}
+
+FUNCTION { reverse.pass }
+{
+  next.extra "b" =
+    { "a" 'extra.label := }
+     'skip$
+  if$
+  label.year extra.label * 'sort.year :=
+  extra.label 'next.extra :=
+}
+
+EXECUTE {initialize.extra.label.stuff}
+
+ITERATE {forward.pass}
+
+REVERSE {reverse.pass}
+
+FUNCTION { bib.sort.order }
+{
+  sort.label
+  "    "
+  *
+  year field.or.null sortify
+  *
+  "    "
+  *
+  title field.or.null
+  sort.format.title
+  *
+  #1 entry.max$ substring$
+  'sort.key$ :=
+}
+
+ITERATE { bib.sort.order }
+
+SORT             % by sort.label, year, title --- giving final bib. order.
+
+FUNCTION { begin.bib }
+{
+  %% Set to #0 show 13-digit ISBN in preference to 10-digit ISBN.
+  %% Set to #1 to show both 10-digit and 13-digit ISBNs.
+  #1 'show-isbn-10-and-13 :=
+
+  "%%% -*-BibTeX-*-" writeln
+  "%%% Do NOT edit. File created by BibTeX with style" writeln
+  "%%% ACM-Reference-Format-Journals [18-Jan-2012]." writeln
+  "" writeln
+
+  preamble$ empty.or.unknown
+    'skip$
+    { preamble$ writeln }
+  if$
+  "\begin{thebibliography}{00}" writeln
+  ""                                                                         
writeln
+  "%%% ====================================================================" 
writeln
+  "%%% NOTE TO THE USER: you can override these defaults by providing"       
writeln
+  "%%% customized versions of any of these macros before the \bibliography"  
writeln
+  "%%% command.  Each of them MUST provide its own final punctuation,"       
writeln
+  "%%% except for \shownote{}, \showDOI{}, and \showURL{}.  The latter two"  
writeln
+  "%%% do not use final punctuation, in order to avoid confusing it with"    
writeln
+  "%%% the Web address."                                                     
writeln
+  "%%%"                                                                      
writeln
+  "%%% To suppress output of a particular field, define its macro to expand" 
writeln
+  "%%% to an empty string, or better, \unskip, like this:"                   
writeln
+  "%%%"                                                                      
writeln
+  "%%% \newcommand{\showDOI}[1]{\unskip}   % LaTeX syntax"                   
writeln
+  "%%%"                                                                      
writeln
+  "%%% \def \showDOI #1{\unskip}           % plain TeX syntax"               
writeln
+  "%%%"                                                                      
writeln
+  "%%% ====================================================================" 
writeln
+  ""                                                                         
writeln
+
+  %% ACM publications do not use CODEN, ISSN, and LCCN data, so their default
+  %% macro wrappers expand to \unskip, discarding their values and unwanted
+  %% space.
+  %%
+  %% For other publications, prior definitions like these may be useful:
+  %%
+  %%     Plain TeX:
+  %%         \def \showCODEN     #1{CODEN #1.}
+  %%         \def \showISSN      #1{ISSN #1.}
+  %%         \def \showLCCN      #1{LCCN #1.}
+  %%
+  %%     LaTeX:
+  %%         \newcommand{\showCODEN}[1]{CODEN #1.}
+  %%         \newcommand{\showISSN}[1]#1{ISSN #1.}
+  %%         \newcommand{\showLCCN}[1]{LCCN #1.}
+
+  "\ifx \showCODEN    \undefined \def \showCODEN     #1{\unskip}     \fi" 
writeln
+  "\ifx \showDOI      \undefined \def \showDOI       #1{#1}\fi" writeln
+  % ACM styles omit ISBNs, but they can be included by suitable definitions of
+  % \showISBNx and \showISBNxiii before the .bbl file is read
+  "\ifx \showISBNx    \undefined \def \showISBNx     #1{\unskip}     \fi" 
writeln
+  "\ifx \showISBNxiii \undefined \def \showISBNxiii  #1{\unskip}     \fi" 
writeln
+  "\ifx \showISSN     \undefined \def \showISSN      #1{\unskip}     \fi" 
writeln
+  "\ifx \showLCCN     \undefined \def \showLCCN      #1{\unskip}     \fi" 
writeln
+  "\ifx \shownote     \undefined \def \shownote      #1{#1}          \fi" 
writeln % NB: final period supplied by add.period$ above
+  "\ifx \showarticletitle \undefined \def \showarticletitle #1{#1}   \fi" 
writeln
+  "\ifx \showURL      \undefined \def \showURL       {\relax}        \fi" 
writeln
+  "% The following commands are used for tagged output and should be " writeln
+  "% invisible to TeX" writeln
+  "\providecommand\bibfield[2]{#2}" writeln
+  "\providecommand\bibinfo[2]{#2}" writeln
+  "\providecommand\natexlab[1]{#1}" writeln
+  "\providecommand\showeprint[2][]{arXiv:#2}" writeln
+}
+
+EXECUTE {begin.bib}
+
+EXECUTE {init.state.consts}
+
+ITERATE {call.type$}
+
+FUNCTION { end.bib }
+{
+  newline$
+  "\end{thebibliography}"
+  writeln
+}
+
+EXECUTE {end.bib}

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