/utphys

% Hypertex version of the AMSalpha bibliographic style, ver. 0.8, Based on:

%

%%% ====================================================================

%%%  @BibTeX-style-file{

%%%     filename        = "amsalpha.bst",

%%%     version         = "2.0",

%%%     date            = "2000/03/27",

%%%     time            = "13:49:36 EST",

%%%     checksum        = "00166 1404 4124 29978",

%%%     author          = "American Mathematical Society",

%%%     address         = "American Mathematical Society,

%%%                        Technical Support,

%%%                        Electronic Products and Services,

%%%                        P. O. Box 6248,

%%%                        Providence, RI 02940,

%%%                        USA",

%%%     telephone       = "401-455-4080 or (in the USA and Canada)

%%%                        800-321-4AMS (321-4267)",

%%%     FAX             = "401-331-3842",

%%%     email           = "tech-support@ams.org (Internet)",

%%%     copyright       = "Copyright 1995 American Mathematical Society,

%%%                        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 first rename it

%%%                        to some other name.",

%%%     codetable       = "ISO/ASCII",

%%%     keywords        = "bibtex, bibliography, amslatex, ams-latex",

%%%     supported       = "yes",

%%%     abstract        = "BibTeX bibliography style `amsalpha' for BibTeX

%%%                        versions 0.99a or later and LaTeX version 2e.

%%%                        Produces alphabetic-label bibliography items in

%%%                        a form typical for American Mathematical Society

%%%                        publications.",

%%%     docstring       = "The checksum field above contains a CRC-16

%%%                        checksum as the first value, followed by the

%%%                        equivalent of the standard UNIX wc (word

%%%                        count) utility output of lines, words, and

%%%                        characters.  This is produced by Robert

%%%                        Solovay's checksum utility.",

%%%  }

%%% ====================================================================

%    Modified by Jacques Distler, 7/2010

%

%  Added support for Eprint archives.

%     doi support

%     url, collaboration, report and SLACcitation fields 

%

% HyperTeX Wizardry:

%

% The following are equivalent:

%   archive  =  arXiv

%   eprint   = "hep-th/9605023"

% and

%   eprint   = "hep-th/9605023"

% both produce 

%

%    \href{http://arxiv.org/abs/hep-th/9605023}{{\tt hep-th/9605023}}

%

% in the bibliographic output at the appropriate point. More generally,

% if the archive field is present, we produce a URL of the form

% "archive/eprint" as the first argument of the \href. If absent, the base

% URL defaults to "http://arxiv.org/abs"

% If you are using a hypertex macropackage, like hyperref.sty, this command

% will create a link to the eprint at Los Alamos (or wherever).

%

% "New-style" arXiv identifiers are also supported.

%

%     archivePrefix = "arXiv",

%     eprint    = "0707.3168",

%     primaryClass = "hep-th",

%

% produces

%

%     \href{http://arxiv.org/abs/0707.3168}{{\tt arXiv:0707.3168 [hep-th]}}

%

% Another (non-arXiv) example:

%

%     archive = "http://cogprints.org",

%     eprint = "5542",

%     archivePrefix = "Cogprints",

%

%  produces

%

%     \href{http://cogprints.org/5542}{{\tt Cogprints:5542}}

%

%  If a

%

%       doi = "10.xxxx"

%

%  field is present, then the journal reference becomes a

%  clickable hyperlink to the online journal version of the paper.

%

% The bibtex output produced by SPIRES, while far from perfect, is pretty

% suitable for use with this style. Indeed, this style was designed with

% SPIRES in mind.

% See the file btxbst.doc for extra documentation other than

% what is included here.  And see btxhak.tex for a description

% of the BibTeX language and how to use it.

% This defines the types of fields that can occur in a database entry

% for this particular bibliography style.  Except for `language',

% this is the standard list from alpha.bst.

%% Types of entries currently allowed in a BibTeX file:

%%

%% ARTICLE -- An article from a journal or magazine.

%%

%% BOOK -- A book with an explicit publisher.

%%

%% BOOKLET -- A work that is printed and bound,

%% but without a named publisher or sponsoring institution.

%%

%% CONFERENCE -- The same as INPROCEEDINGS,

%% included for Scribe compatibility.

%%

%% INBOOK -- A part of a book,

%% which may be a chapter (or section or whatever) and/or a range of pages.

%%

%% INCOLLECTION -- A part of a book having its own title.

%%

%% INPROCEEDINGS -- An article in a conference proceedings.

%%

%% MANUAL -- Technical documentation.

%%

%% MASTERSTHESIS -- A Master's thesis.

%%

%% MISC -- Use this type when nothing else fits.

%%

%% PHDTHESIS -- A PhD thesis.

%%

%% PROCEEDINGS -- The proceedings of a conference.

%%

%% TECHREPORT -- A report published by a school or other institution,

%% usually numbered within a series.

%%

%% UNPUBLISHED -- A document having an author and title, but not formally

%% published.

ENTRY

 { address

   author

   booktitle

   chapter

   edition

   editor

   howpublished

   institution

   journal

   key

   language

   month

   mrnumber

   note

   number

   organization

   pages

   publisher

   school

   series

   title

   type

   volume

   year

    archive

    archivePrefix

    collaboration

    doi

    eprint

    primaryClass

    report

    SLACcitation

    url

 }

 {}

 { label extra.label sort.label bysame }

% Removed after.sentence, after.block---not needed.

INTEGERS { output.state before.all mid.sentence after.quote after.sentence

		after.quoted.block after.block }

FUNCTION {init.state.consts}

{ #0 'before.all :=

  #1 'mid.sentence :=

  #2 'after.quote :=

  #3 'after.sentence :=

  #4 'after.quoted.block :=

  #5 'after.block :=

}

% Scratch variables:

STRINGS { s t }

% Utility functions

FUNCTION {shows}

{ duplicate$ "::::  `" swap$ * "'" * top$

}

FUNCTION {showstack}

{"STACK====================================================================="

top$

stack$

"ENDSTACK=================================================================="

top$

}

FUNCTION {not}

{   { #0 }

   { #1 }

 if$

}

FUNCTION {and}

{   'skip$

   { pop$ #0 }

 if$

}

FUNCTION {or}

{   { pop$ #1 }

   'skip$

 if$

}

FUNCTION {field.or.null}

{ duplicate$ empty$

   { pop$ "" }

   'skip$

 if$

}

FUNCTION {emphasize}

{ duplicate$ empty$

   { pop$ "" }

   { "\emph{" swap$ * "}" * }

 if$

}

FUNCTION {tt}

{ duplicate$ empty$

   { pop$ "" }

   { "{\tt " swap$ * "}" * }

 if$

}

% n.dashify is used to make sure page ranges get the TeX code

% (two hyphens) for en-dashes.

FUNCTION {n.dashify}

{ 't :=

 ""

   { t empty$ 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$

}

% tie.or.space.connect connects two items with a ~ if the

% second item is less than 3 letters long, otherwise it just puts an

% ordinary space.

FUNCTION {tie.or.space.connect}

{ duplicate$ text.length$ #3 <

   { "~" }

   { " " }

 if$

 swap$ * *

}

FUNCTION {add.space.if.necessary}

{ duplicate$ "" =

   'skip$

   { " " * }

 if$

}

% either.or.check gives a warning if two mutually exclusive fields

% were used in the database.

FUNCTION {either.or.check}

{ empty$

   'pop$

   { "can't use both " swap$ * " fields in " * cite$ * warning$ }

 if$

}

% output.nonnull is called by output.

FUNCTION {output.nonnull}

% remove the top item from the stack because it's in the way.

{ 's :=

 output.state mid.sentence =

% If we're in mid-sentence, add a comma to the new top item and write it

   { ", " * write$ }

% Otherwise, if we're at the beginning of a bibitem,

   { output.state before.all =

% just write out the top item from the stack;

     'write$

% and the last alternative is that we're at the end of the current

% bibitem, so we add a period to the top stack item and write it out.

       { add.period$ " " * write$ }

     if$

     mid.sentence 'output.state :=

   }

 if$

% Put the top item back on the stack that we removed earlier.

 s

}

% Output checks to see if the stack top is empty; if not, it

% calls output.nonnull to write it out.

FUNCTION {output}

{ duplicate$ empty$

   'pop$

   'output.nonnull

 if$

}

% Standard warning message for a missing or empty field. For the user

% we call any such field `missing' without respect to the distinction

% made by BibTeX between missing and empty.

FUNCTION {missing.warning}

{ "missing " swap$ * " in " * cite$ * warning$ }

% Output.check is like output except that it gives a warning on-screen

% if the given field in the database entry is empty.  t is the field

% name.

FUNCTION {output.check}

{ 't :=

 duplicate$ empty$

   { pop$ t missing.warning }

   'output.nonnull

 if$

}

FUNCTION {output.bibitem}

{ newline$

 "\bibitem[" write$

  label write$

 "]{" write$

 cite$ write$

 "}" write$

 newline$

% This empty string is the first thing that will be written

% the next time write$ is called.  Done this way because each

% item is saved on the stack until we find out what punctuation

% should be added after it.  Therefore we need an empty first item.

 ""

 before.all 'output.state :=

}

FUNCTION {output.nonempty.mrnumber}

{ duplicate$ missing$

   { pop$ "" }

   'skip$

 if$

 duplicate$ empty$

   'pop$

   { " \MR{" swap$ * "}" * write$ }

 if$

}

FUNCTION {blank.sep}

{ after.quote 'output.state :=

}

FUNCTION {fin.entry}

{ add.period$

 write$

%  mrnumber output.nonempty.mrnumber

 newline$

}

% Removed new.block, new.block.checka, new.block.checkb, new.sentence,

% new.sentence.checka, and new.sentence.checkb functions here, since they

% don't seem to be needed in the AMS style.  Also moved some real

% basic functions like `and' and 'or' earlier in the file.

FUNCTION {new.block}

{ output.state before.all =

    'skip$

    { output.state after.quote =

	{ after.quoted.block 'output.state := }

	{ after.block 'output.state := }

      if$

    }

  if$

}

FUNCTION {new.sentence}

{ output.state after.block =

    'skip$

    { output.state before.all =

	'skip$

	{ after.sentence 'output.state := }

      if$

    }

  if$

}

INTEGERS { nameptr namesleft numnames }

% The extra section to write out a language field was added

% for AMSPLAIN.BST.  Not present in plain.bst.

FUNCTION {format.language}

{ language empty$

   { "" }

   { " (" language * ")" * }

 if$

}

% This version of format.names puts names in the format

%

% First von Last, Jr.

%

% (i.e., first name first, no abbreviating to initials).

FUNCTION {format.names}

{ 's :=

 #1 'nameptr :=

 s num.names$ 'numnames :=

 numnames 'namesleft :=

   { namesleft #0 > }

   { s nameptr "{ff~}{vv~}{ll}{, jj}" format.name$ 't :=

     nameptr #1 >

	{ namesleft #1 >

	    { ", " * t * }

	    { numnames #2 >

		{ "," * }

		'skip$

	      if$

	      t "others" =

		{ " et~al." * }

		{ " and " * t * }

	      if$

	    }

	  if$

	}

	't

     if$

     nameptr #1 + 'nameptr :=

     namesleft #1 - 'namesleft :=

   }

 while$

}

FUNCTION {format.authors}

{ author empty$

   { "" }

   { bysame "\bysame" =

        { bysame }

        { author format.names }

    if$

   }

 if$

}

FUNCTION {format.editors}

{ editor empty$

   { "" }

   { editor format.names

     editor num.names$ #1 >

	{ " (eds.)" * }

	{ " (ed.)" * }

     if$

   }

 if$

}

FUNCTION {format.nonauthor.editors}

{ editor empty$

   { "" }

   { editor format.names

     editor num.names$ #1 >

	{ ", eds." * }

	{ ", ed." * }

     if$

   }

 if$

}

FUNCTION {format.archive}

{

  archivePrefix empty$

      { "" }

      { archivePrefix ":" *}

  if$            

}

FUNCTION {format.title}

{ title empty$

   { "" }

   { title "t" change.case$ emphasize }

 if$

}

FUNCTION {format.primaryClass}

{

  primaryClass empty$

      { "" }

      { " [" primaryClass * "]" *}

  if$            

}

FUNCTION {format.eprint}

{ eprint empty$

     { ""}

     { archive empty$

          {"\href{http://arxiv.org/abs/" eprint * "}" * 

             "{{\tt " * format.archive * eprint *

              format.primaryClass * "}}" *}

          {"\href{" archive *  "/" * eprint * "}" * 

             "{{\tt " * format.archive * eprint *

              format.primaryClass * "}}" *}

       if$

     }

     if$

}

FUNCTION {format.url}

{ url empty$

    { "" }

    {"\url{" url * "}" *}

  if$

}

FUNCTION {add.doi}

{ duplicate$ empty$

    { skip$ }

    { doi empty$

        {}

        {"\href{http://dx.doi.org/" doi * "}{" * swap$ * "}" *}

      if$

    }

  if$

}

FUNCTION {format.report}

{ report empty$

     { ""}

     { report}

     if$

}

FUNCTION {format.journal.vol.year}

{ journal empty$

   { "" "journal name" missing.warning }

   { journal

     volume empty$

       'skip$

       { " \textbf{" * volume * "}" * }

     if$

     year empty$

       { "year" missing.warning }

       { " (" * year * ")" * }

     if$

   }

 if$

}

% For formatting the issue number for a journal article.

FUNCTION {format.number}

{ number empty$

   { "" }

   { "no.~" number * }

 if$

}

% For formatting miscellaneous dates

FUNCTION {format.date}

{ year empty$

   { month empty$

	{ "" }

	{ "there's a month but no year in " cite$ * warning$

	  month

	}

     if$

   }

   { month empty$

	'year

	{ month " " * year * }

     if$

   }

 if$

}

FUNCTION {format.collaboration}

{ collaboration empty$

    { "" }

    { "{\bf " collaboration * "} " * "Collaboration" * }

  if$

}

FUNCTION {format.SLACcitation}

{ SLACcitation empty$

  {""}

   { newline$ SLACcitation output "" newline$ }

  if$

}

%%      The volume, series and number information is sort of tricky.

%%      This code handles it as follows:

%%      If the series is present, and the volume, but not the number,

%%        then we do "\emph{Book title}, Series Name, vol. 000"

%%      If the series is present, and the number, but not the volume,

%%        then we do "\emph{Book title}, Series Name, no. 000"

%%      If the series is present, and both number and volume,

%%        then we do "\emph{Book title}, vol. XX, Series Name, no. 000"

%%      Finally, if the series is absent,

%%        then we do "\emph{Book title}, vol. XX"

%%        or         "\emph{Book title}, no. 000"

%%        and if both volume and number are present, give a warning message.

FUNCTION {format.bookvolume.series.number}

{ volume empty$

   { "" % Push the empty string as a placeholder in case everything else

        % is empty too.

     series empty$

       'skip$

       { pop$ series } % if series is not empty put in stack

     if$

     number empty$

       'skip$

       { duplicate$ empty$ % if no preceding material,

           'skip$          % do nothing, otherwise

           { ", " * }      % add a comma and space to separate.

         if$

         "no." number tie.or.space.connect * % add the number information

       }

     if$

   }

%% If the volume is NOT EMPTY:

   { "vol." volume tie.or.space.connect % vol. XX

     number empty$

       { series empty$

           'skip$

           { series ", " * swap$ *}    % Series Name, vol. XX

         if$

       }

       { series empty$

           { "can't use both volume and number if series info is missing"

             warning$

             "in BibTeX entry type `" type$ * "'" * top$

           }

           { ", " * series * ", no." * number tie.or.space.connect }

         if$

       }

     if$

   }

 if$

}  % end of format.bookvolume.series.number

%% format.inproc.title.where.editors is used by inproceedings entry types

%%      No case changing or emphasizing for the title.  We want initial

%%      caps, roman.

%%      We add parentheses around the address (place where conference

%%      was held).

%%      Likewise we add parentheses around the editors' names.

FUNCTION {format.inproc.title.address.editors}

{ booktitle empty$

   { "" }

   { booktitle

     address empty$

       'skip$

       { add.space.if.necessary "(" * address * ")" * }

     if$

     editor empty$

       'skip$

       { add.space.if.necessary "(" * format.nonauthor.editors * ")" * }

     if$

   }

 if$

}

%% format.incoll.title.editors is similar to format.inproc... but

%% omits the address. For collections that are not proceedings volumes.

FUNCTION {format.incoll.title.editors}

{ booktitle empty$

   { "" }

   { editor empty$

       { booktitle }

       { booktitle

         add.space.if.necessary "(" * format.nonauthor.editors * ")" *

       }

     if$

   }

 if$

}

FUNCTION {format.edition}

{ edition empty$

   { "" }

   { output.state mid.sentence =

	{ edition "l" change.case$ " ed." * }

	{ edition "t" change.case$ " ed." * }

     if$

   }

 if$

}

INTEGERS { multiresult }

FUNCTION {multi.page.check}

{ 't :=

 #0 'multiresult :=

   { multiresult not

     t empty$ 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$

   { "" }

   { pages n.dashify }

 if$

}

FUNCTION {format.book.pages}

{ pages empty$

   { "" }

   { pages multi.page.check

	{ "pp.~" pages n.dashify * }

	{ "p.~" pages * }

     if$

   }

 if$

}

FUNCTION {format.chapter.pages}

{ chapter empty$

   'format.book.pages

   { type empty$

	{ "ch.~" }

	{ type "l" change.case$ " " * }

     if$

     chapter *

     pages empty$

	'skip$

	{ ", " * format.book.pages * }

     if$

   }

 if$

}

FUNCTION {empty.misc.check}

{ author empty$ title empty$ howpublished empty$

 month empty$ year empty$ note empty$

 and and and and and

 key empty$ not and

   { "all relevant fields are empty in " cite$ * warning$ }

   'skip$

 if$

}

FUNCTION {format.thesis.type}

{ type empty$

   'skip$

   { pop$

     type "t" change.case$

   }

 if$

}

FUNCTION {format.tr.number}

{ type empty$

   { "Tech. Report" }

   'type

 if$

 number empty$

   { "t" change.case$ }

   { number tie.or.space.connect }

 if$

}

% The format.crossref functions haven't been paid much attention

% at the present time (June 1990) and could probably use some

% work.  MJD

FUNCTION {format.article.crossref}

{ key empty$

   { journal empty$

	{ "need key or journal for " cite$ * " to crossref " * crossref *

	  warning$

	  ""

	}

	{ "in " journal * }

     if$

   }

   { "in " key * }

 if$

 " \cite{" * crossref * "}" *

}

FUNCTION {format.crossref.editor}

{ editor #1 "{vv~}{ll}" format.name$

 editor num.names$ duplicate$

 #2 >

   { pop$ " et~al." * }

   { #2 <

	'skip$

	{ editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =

	    { " et~al." * }

	    { " and " * editor #2 "{vv~}{ll}" format.name$ * }

	  if$

	}

     if$

   }

 if$

}

FUNCTION {format.book.crossref}

{ volume empty$

   { "empty volume in " cite$ * "'s crossref of " * crossref * warning$

     "in "

   }

   { "vol." volume tie.or.space.connect

     " of " *

   }

 if$

 editor empty$

 editor field.or.null author field.or.null =

 or

   { key empty$

	{ series empty$

	    { "need editor, key, or series for " cite$ * " to crossref " *

	      crossref * warning$

	      "" *

	    }

	    { series * }

	  if$

	}

	{ key * }

     if$

   }

   { format.crossref.editor * }

 if$

 " \cite{" * crossref * "}" *

}

FUNCTION {format.incoll.inproc.crossref}

{ editor empty$

 editor field.or.null author field.or.null =

 or

   { key empty$

	{ booktitle empty$

	    { "need editor, key, or booktitle for " cite$ * " to crossref " *

	      crossref * warning$

	      ""

	    }

	    { "in \emph{" booktitle * "}" * }

	  if$

	}

	{ "in " key * }

     if$

   }

   { "in " format.crossref.editor * }

 if$

 " \cite{" * crossref * "}" *

}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% The main functions for each entry type.

% journal, vol and year are formatted together because they are

% not separated by commas.

FUNCTION {article}

{ output.bibitem

 format.collaboration output

 format.authors "author" output.check

 format.title "title" output.check

 crossref missing$

 { journal missing$ 

     {}

     { format.journal.vol.year add.doi "journal, volume, and year" output.check

       format.number output

       format.pages "pages" output.check

      }

     if$

    report missing$

        {format.eprint output}

        {blank.sep format.report output format.eprint output}

      if$

  }

  { format.article.crossref output.nonnull

     format.pages "pages" output.check

     format.eprint output

   }

 if$

 new.sentence

 format.language *

  new.sentence

  format.url output

  new.sentence

  note output

  new.sentence

  format.SLACcitation output

  fin.entry

}

FUNCTION {book}

{ output.bibitem

  format.collaboration output

 author empty$

   { format.editors "author and editor" output.check }

   { format.authors output.nonnull

     crossref missing$

	{ "author and editor" editor either.or.check }

	'skip$

     if$

   }

 if$

 format.title add.doi "title" output.check

 format.edition output

 crossref missing$

   { format.bookvolume.series.number output

     publisher "publisher" output.check

     address output

   }

   { format.book.crossref output.nonnull

   }

 if$

 format.date "year" output.check

 format.language *

  new.block

 format.eprint output

  new.block

 format.url output

 new.block

 note output

 new.sentence

 format.SLACcitation output

 fin.entry

}

FUNCTION {booklet}

{ output.bibitem

 format.authors output

 format.title "title" output.check

 howpublished output

 address output

 format.date output

 new.block

 format.eprint output

 new.block

  format.url output

  new.block

 note output

 new.sentence

 format.SLACcitation output

 fin.entry

}

FUNCTION {inbook}

{ output.bibitem

  format.collaboration output

 author empty$

   { format.editors "author and editor" output.check }

   { format.authors output.nonnull

     crossref missing$

	{ "author and editor" editor either.or.check }

	'skip$

     if$

   }

 if$

 format.title "title" output.check

 format.edition output

 crossref missing$

   { format.bookvolume.series.number output

     format.chapter.pages "chapter and pages" output.check

     publisher "publisher" output.check

     address output

   }

   { format.chapter.pages "chapter and pages" output.check

     format.book.crossref output.nonnull

   }

 if$

 format.date "year" output.check

 format.language *

  new.block

 format.eprint output

  new.block

 format.url output

  new.block

 note output

 new.sentence

 format.SLACcitation output

 fin.entry

}

FUNCTION {incollection}

{ output.bibitem

  format.collaboration output

 format.authors "author" output.check

 format.title add.doi "title" output.check

 crossref missing$

   { format.incoll.title.editors "booktitle" output.check

     format.bookvolume.series.number output

     publisher "publisher" output.check

     address output

     format.edition output

     format.date "year" output.check

   }

   { format.incoll.inproc.crossref output.nonnull

   }

 if$

 format.book.pages output

 format.language *

  new.block

 format.eprint output

 new.block

  format.url output

  new.block

 note output

 new.sentence

 format.SLACcitation output

 fin.entry

}

FUNCTION {inproceedings}

{ output.bibitem

  format.collaboration output

 format.authors "author" output.check

 format.title add.doi "title" output.check

 crossref missing$

   { format.inproc.title.address.editors "booktitle" output.check

     format.bookvolume.series.number output

     organization output

     publisher output

     format.date "year" output.check

   }

   { format.incoll.inproc.crossref output.nonnull

   }

 if$

 format.book.pages output

  new.block

 format.eprint output

  new.block

 format.url output

  new.block

 format.language *

  note output

  new.sentence

  format.SLACcitation output

 fin.entry

}

FUNCTION {conference} { inproceedings }

FUNCTION {manual}

{ output.bibitem

  format.collaboration output

 author empty$

   { organization empty$

	'skip$

	{ organization output.nonnull

	  address output

	}

     if$

   }

   { format.authors output.nonnull }

 if$

 format.title "title" output.check

 author empty$

   { organization empty$

	{ address output }

	'skip$

     if$

   }

   { organization output

     address output

   }

 if$

 format.edition output

 format.date output

  new.block

 format.eprint output

  new.block

  format.url output

  new.block

 note output

 fin.entry

}

FUNCTION {mastersthesis}

{ output.bibitem

 format.authors "author" output.check

 format.title add.doi "title" output.check

 "Master's thesis" format.thesis.type output.nonnull

 school "school" output.check

 address output

 format.date "year" output.check

 format.book.pages output

 new.block

 format.eprint output

 new.block

  format.url output

  new.block

  note output

 fin.entry

}

FUNCTION {misc}

{ output.bibitem

  format.collaboration output

 format.authors output

 format.title add.doi output

 howpublished output

 format.date output

 format.book.pages output

 new.block

 format.eprint output

 new.block

  format.url output

  new.sentence

  note output

  new.sentence

 fin.entry

 empty.misc.check

}

FUNCTION {phdthesis}

{ output.bibitem

 format.authors "author" output.check

 format.title add.doi "title" output.check

 "Ph.D. thesis" format.thesis.type output.nonnull

 school "school" output.check

 address output

 format.date "year" output.check

 format.book.pages output

 new.block

 format.eprint output

 new.block

  format.url output

  new.block

  note output

  new.sentence

  format.SLACcitation output

 fin.entry

}

FUNCTION {proceedings}

{ output.bibitem

 editor empty$

   { organization output }

   { format.editors output.nonnull }

 if$

 format.title add.doi "title" output.check

 format.bookvolume.series.number output

 address empty$

   { editor empty$

       'skip$

	{ organization output }

     if$

     publisher output

     format.date "year" output.check

   }

   { address output.nonnull

     editor empty$

	'skip$

	{ organization output }

     if$

     publisher output

     format.date "year" output.check

   }

 if$

 format.eprint output

%  new.block

  format.url output

  note output

  new.sentence

  format.SLACcitation output

 fin.entry

}

FUNCTION {techreport}

{ output.bibitem

 format.authors "author" output.check

 format.title "title" output.check

 format.tr.number output.nonnull

 institution "institution" output.check

 address output

 format.date "year" output.check

 format.eprint output

%  new.block

 note output

 fin.entry

}

FUNCTION {unpublished}

{ output.bibitem

 format.authors "author" output.check

 format.title "title" output.check

 note "note" output.check

 format.date output

 format.eprint output

 format.url output

  new.sentence

  format.SLACcitation output

 fin.entry

}

FUNCTION {default.type} { misc }

MACRO {jan} {"January"}

MACRO {feb} {"February"}

MACRO {mar} {"March"}

MACRO {apr} {"April"}

MACRO {may} {"May"}

MACRO {jun} {"June"}

MACRO {jul} {"July"}

MACRO {aug} {"August"}

MACRO {sep} {"September"}

MACRO {oct} {"October"}

MACRO {nov} {"November"}

MACRO {dec} {"December"}

READ

FUNCTION {sortify}

{ purify$

 "l" change.case$

}

INTEGERS { len }

FUNCTION {chop.word}

{ 's :=

 'len :=

 s #1 len substring$ =

   { s len #1 + global.max$ substring$ }

   's

 if$

}

INTEGERS { et.al.char.used }

FUNCTION {initialize.et.al.char.used}

{ #0 'et.al.char.used :=

}

EXECUTE {initialize.et.al.char.used}

FUNCTION {format.lab.names}

{ 's :=

 s num.names$ 'numnames :=

 numnames #1 >

   { numnames #4 >

	{ #3 'namesleft := }

	{ numnames 'namesleft := }

     if$

     #1 'nameptr :=

     ""

	{ namesleft #0 > }

	{ nameptr numnames =

	    { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =

		{ "{\etalchar{+}}" *

		  #1 'et.al.char.used :=

		}

		{ s nameptr "{v{}}{l{}}" format.name$ * }

	      if$

	    }

	    { s nameptr "{v{}}{l{}}" format.name$ * }

	  if$

	  nameptr #1 + 'nameptr :=

	  namesleft #1 - 'namesleft :=

	}

     while$