% BibTeX bibliography style `yromega'
% A modification, (C) 2011
% version 0.99a for BibTeX versions 0.99a or later, LaTeX version 2.09.
	% 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
	% btxbst.doc, plain.bst, unsrt.bst, alpha.bst, and abbrv.bst.
	% This restriction helps ensure that all standard styles are identical.
	% The file btxbst.doc has the documentation for this style.

ENTRY
{ address
  author
  booktitle
  chapter
  edition
  editor
  howpublished
  institution
  journal
  key
  month
  note
  number
  organization
  pages
  publisher
  school
  series
  title
  type
  volume
  year
}
{}
{ label extra.label sort.label }

FUNCTION{dt}
{
duplicate$
top$
swap$
duplicate$
top$
swap$
}

INTEGERS { output.state before.all mid.sentence after.sentence after.block }

FUNCTION {init.state.consts}
{ #0 'before.all :=
#1 'mid.sentence :=
#2 'after.sentence :=
#3 'after.block :=
}

STRINGS {s t }

FUNCTION {output.nonnull}
{ 's :=
output.state mid.sentence =
  { ", " * write$ }
  { output.state after.block =
	{ add.period$ write$
	  newline$
	  "\newblock " write$
	}
	{ output.state before.all =
	    'write$
	    { add.period$ " " * write$ }
	  if$
	}
    if$
    mid.sentence 'output.state :=
  }
if$
s
}

FUNCTION {output}
{ duplicate$ empty$
  'pop$
  'output.nonnull
if$
}

FUNCTION {output.check}
{ 't :=
duplicate$ empty$
  { pop$ "empty " t * " in " * cite$ * warning$ }
  'output.nonnull
if$
}

FUNCTION {output.bibitem}
{ newline$
"\bibitem[" write$
label write$
"]{" write$
cite$ write$
"}" write$
newline$
""
before.all 'output.state :=
}

FUNCTION {fin.entry}
{ add.period$
write$
newline$
}

FUNCTION {new.block}
{ output.state before.all =
  'skip$
  { after.block 'output.state := }
if$
}

FUNCTION {new.sentence}
{ output.state after.block =
  'skip$
  { output.state before.all =
	'skip$
	{ after.sentence 'output.state := }
    if$
  }
if$
}

% FUNCTION {not}
% {   { #0 }
%    { #1 }
%  if$
%}

FUNCTION {and}
{   'skip$
  { pop$ #0 }
if$
}

FUNCTION {or}
{   { pop$ #1 }
  'skip$
if$
}

FUNCTION {new.block.checka}
{ empty$
  'skip$
  'new.block
if$
}

FUNCTION {new.block.checkb}
{ empty$
swap$ empty$
and
  'skip$
  'new.block
if$
}

FUNCTION {new.sentence.checka}
{ empty$
  'skip$
  'new.sentence
if$
}

FUNCTION {new.sentence.checkb}
{ empty$
swap$ empty$
and
  'skip$
  'new.sentence
if$
}

FUNCTION {field.or.null}
{ duplicate$ empty$
  { pop$ "" }
  'skip$
if$
}

FUNCTION {emphasize}
{ duplicate$ empty$
  { pop$ "" }
  { "{\em " swap$ * "}" * }
if$
}

INTEGERS { nameptr namesleft numnames }

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$
  { "" }
  { author format.names }
if$
}

FUNCTION {format.editors}
{ editor empty$
  { "" }
  { editor format.names
    editor num.names$ #1 >
	{ ", editors" * }
	{ ", editor" * }
    if$
  }
if$
}

FUNCTION {format.title}
{ title empty$
  { "" }
  { title "t" change.case$ }
if$
}

FUNCTION {n.dashify}
{ 't :=
""
  { t empty$ #0 = }
  { t #1 #1 substring$ "-" =
	{ t #1 #2 substring$ "--" = #0 =
	    { "--" *
	      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.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.btitle}
{ title emphasize
}

FUNCTION {tie.or.space.connect}
{ duplicate$ text.length$ #3 <
  { "~" }
  { " " }
if$
swap$ * *
}

FUNCTION {either.or.check}
{ empty$
  'pop$
  { "can't use both " swap$ * " fields in " * cite$ * warning$ }
if$
}

FUNCTION {format.bvolume}
{ volume empty$
  { "" }
  { "volume" volume tie.or.space.connect
    series empty$
	'skip$
	{ " of " * series emphasize * }
    if$
    "volume and number" number either.or.check
  }
if$
}

FUNCTION {format.number.series}
{ volume empty$
  { number empty$
	{ series field.or.null }
	{ output.state mid.sentence =
	    { "number" }
	    { "Number" }
	  if$
	  number tie.or.space.connect
	  series empty$
	    { "there's a number but no series in " cite$ * warning$ }
	    { " in " * series * }
	  if$
	}
    if$
  }
  { "" }
if$
}

FUNCTION {format.edition}
{ edition empty$
  { "" }
  { output.state mid.sentence =
	{ edition "l" change.case$ " edition" * }
	{ edition "t" change.case$ " edition" * }
    if$
  }
if$
}

INTEGERS { multiresult }

FUNCTION {multi.page.check}
{ 't :=
#0 'multiresult :=
  { multiresult #0 =
    t empty$ #0 =
    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 multi.page.check
	{ "pages" pages n.dashify tie.or.space.connect }
	{ "page" pages tie.or.space.connect }
    if$
  }
if$
}

FUNCTION {format.vol.num.pages}
{ volume field.or.null
number empty$
  'skip$
  { "(" number * ")" * *
    volume empty$
	{ "there's a number but no volume in " cite$ * warning$ }
	'skip$
    if$
  }
if$
pages empty$
  'skip$
  { duplicate$ empty$
	{ pop$ format.pages }
	{ ":" * pages n.dashify * }
    if$
  }
if$
}

FUNCTION {format.chapter.pages}
{ chapter empty$
  'format.pages
  { type empty$
	{ "chapter" }
	{ type "l" change.case$ }
    if$
    chapter tie.or.space.connect
    pages empty$
	'skip$
	{ ", " * format.pages * }
    if$
  }
if$
}

FUNCTION {format.in.ed.booktitle}
{ booktitle empty$
  { "" }
  { editor empty$
	{ "In " booktitle emphasize * }
	{ "In " format.editors * ", " * booktitle emphasize * }
    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$ >
  { "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$
  { "Technical Report" }
  'type
if$
number empty$
  { "t" change.case$ }
  { number tie.or.space.connect }
if$
}

FUNCTION {format.article.crossref}
{ key empty$
  { journal empty$
	{ "need key or journal for " cite$ * " to crossref " * crossref *
	  warning$
	  ""
	}
	{ "In {\em " 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 "
  }
  { "Volume" 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$
	      "" *
	    }
	    { "{\em " * 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 {\em " booktitle * "\/}" * }
	  if$
	}
	{ "In " key * }
    if$
  }
  { "In " format.crossref.editor * }
if$
" \cite{" * crossref * "}" *
}

FUNCTION {article}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
crossref missing$
  { journal emphasize "journal" output.check
    format.vol.num.pages output
    format.date "year" output.check
  }
  { format.article.crossref output.nonnull
    format.pages output
  }
if$
new.block
note output
fin.entry
}

FUNCTION {book}
{ output.bibitem
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$
new.block
format.btitle "title" output.check
crossref missing$
  { format.bvolume output
    new.block
    format.number.series output
    new.sentence
    publisher "publisher" output.check
    address output
  }
  { new.block
    format.book.crossref output.nonnull
  }
if$
format.edition output
format.date "year" output.check
new.block
note output
fin.entry
}

FUNCTION {booklet}
{ output.bibitem
format.authors output
new.block
format.title "title" output.check
howpublished address new.block.checkb
howpublished output
address output
format.date output
new.block
note output
fin.entry
}

FUNCTION {inbook}
{ output.bibitem
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$
new.block
format.btitle "title" output.check
crossref missing$
  { format.bvolume output
    format.chapter.pages "chapter and pages" output.check
    new.block
    format.number.series output
    new.sentence
    publisher "publisher" output.check
    address output
  }
  { format.chapter.pages "chapter and pages" output.check
    new.block
    format.book.crossref output.nonnull
  }
if$
format.edition output
format.date "year" output.check
new.block
note output
fin.entry
}

FUNCTION {incollection}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
crossref missing$
  { format.in.ed.booktitle "booktitle" output.check
    format.bvolume output
    format.number.series output
    format.chapter.pages output
    new.sentence
    publisher "publisher" output.check
    address output
    format.edition output
    format.date "year" output.check
  }
  { format.incoll.inproc.crossref output.nonnull
    format.chapter.pages output
  }
if$
new.block
note output
fin.entry
}

FUNCTION {inproceedings}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
crossref missing$
  { format.in.ed.booktitle "booktitle" output.check
    format.bvolume output
    format.number.series output
    format.pages output
    address empty$
	{ organization publisher new.sentence.checkb
	  organization output
	  publisher output
	  format.date "year" output.check
	}
	{ address output.nonnull
	  format.date "year" output.check
	  new.sentence
	  organization output
	  publisher output
	}
    if$
  }
  { format.incoll.inproc.crossref output.nonnull
    format.pages output
  }
if$
new.block
note output
fin.entry
}

FUNCTION {conference} { inproceedings }

FUNCTION {manual}
{ output.bibitem
author empty$
  { organization empty$
	'skip$
	{ organization output.nonnull
	  address output
	}
    if$
  }
  { format.authors output.nonnull }
if$
new.block
format.btitle "title" output.check
author empty$
  { organization empty$
	{ address new.block.checka
	  address output
	}
	'skip$
    if$
  }
  { organization address new.block.checkb
    organization output
    address output
  }
if$
format.edition output
format.date output
new.block
note output
fin.entry
}

FUNCTION {mastersthesis}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
"Master's thesis" format.thesis.type output.nonnull
school "school" output.check
address output
format.date "year" output.check
new.block
note output
fin.entry
}

FUNCTION {misc}
{ output.bibitem
format.authors output
title howpublished new.block.checkb
format.title output
howpublished new.block.checka
howpublished output
format.date output
new.block
note output
fin.entry
empty.misc.check
}

FUNCTION {phdthesis}
{ output.bibitem
format.authors "author" output.check
new.block
format.btitle "title" output.check
new.block
"PhD thesis" format.thesis.type output.nonnull
school "school" output.check
address output
format.date "year" output.check
new.block
note output
fin.entry
}

FUNCTION {proceedings}
{ output.bibitem
editor empty$
  { organization output }
  { format.editors output.nonnull }
if$
new.block
format.btitle "title" output.check
format.bvolume output
format.number.series output
address empty$
  { editor empty$
	{ publisher new.sentence.checka }
	{ organization publisher new.sentence.checkb
	  organization output
	}
    if$
    publisher output
    format.date "year" output.check
  }
  { address output.nonnull
    format.date "year" output.check
    new.sentence
    editor empty$
	'skip$
	{ organization output }
    if$
    publisher output
  }
if$
new.block
note output
fin.entry
}

FUNCTION {techreport}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
format.tr.number output.nonnull
institution "institution" output.check
address output
format.date "year" output.check
new.block
note output
fin.entry
}

FUNCTION {unpublished}
{ output.bibitem
format.authors "author" output.check
new.block
format.title "title" output.check
new.block
note "note" output.check
format.date 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"}

MACRO {acmcs} {"ACM Computing Surveys"}

MACRO {acta} {"Acta Informatica"}

MACRO {comb} {"Combinatorica"}

MACRO {cacm} {"Communications of the ACM"}

MACRO {ibmjrd} {"IBM Journal of Research and Development"}

MACRO {ibmsj} {"IBM Systems Journal"}

MACRO {ieeese} {"IEEE Transactions on Software Engineering"}

MACRO {ieeetc} {"IEEE Transactions on Computers"}

MACRO {ieeetcad}
{"IEEE Transactions on Computer-Aided Design of Integrated Circuits"}

MACRO {ipl} {"Information Processing Letters"}

MACRO {jacm} {"Journal of the ACM"}

MACRO {jcss} {"Journal of Computer and System Sciences"}

MACRO {mlq} {"Mathematical Logic Quarterly"}

MACRO {scp} {"Science of Computer Programming"}

MACRO {sicomp} {"SIAM Journal on Computing"}

MACRO {tocs} {"ACM Transactions on Computer Systems"}

MACRO {tods} {"ACM Transactions on Database Systems"}

MACRO {tog} {"ACM Transactions on Graphics"}

MACRO {toms} {"ACM Transactions on Mathematical Software"}

MACRO {toois} {"ACM Transactions on Office Information Systems"}

MACRO {toplas} {"ACM Transactions on Programming Languages and Systems"}

MACRO {tcs} {"Theoretical Computer Science"}

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$
    numnames #4 >
	{ "{\etalchar{+}}" *
	  #1 'et.al.char.used :=
	}
	'skip$
    if$
  }
  { s #1 "{v{}}{l{}}" format.name$
    duplicate$ text.length$ #2 <
	{ pop$ s #1 "{ll}" format.name$ #3 text.prefix$ }
	'skip$
    if$
  }
if$
}

FUNCTION {author.key.label}
{ author empty$
  { key empty$
	{ cite$ #1 #3 substring$ }
	{ key #3 text.prefix$ }
    if$
  }
  { author format.lab.names }
if$
}

FUNCTION {author.editor.key.label}
{ author empty$
  { editor empty$
	{ key empty$
	    { cite$ #1 #3 substring$ }
	    { key #3 text.prefix$ }
	  if$
	}
	{ editor format.lab.names }
    if$
  }
  { author format.lab.names }
if$
}

FUNCTION {author.key.organization.label}
{ author empty$
  { key empty$
	{ organization empty$
	    { cite$ #1 #3 substring$ }
	    { "The " #4 organization chop.word #3 text.prefix$ }
	  if$
	}
	{ key #3 text.prefix$ }
    if$
  }
  { author format.lab.names }
if$
}

FUNCTION {editor.key.organization.label}
{ editor empty$
  { key empty$
	{ organization empty$
	    { cite$ #1 #3 substring$ }
	    { "The " #4 organization chop.word #3 text.prefix$ }
	  if$
	}
	{ key #3 text.prefix$ }
    if$
  }
  { editor format.lab.names }
if$
}

FUNCTION {calc.label}
{ type$ "book" =
type$ "inbook" =
or
  'author.editor.key.label
  { type$ "proceedings" =
	'editor.key.organization.label
	{ type$ "manual" =
	    'author.key.organization.label
	    'author.key.label
	  if$
	}
    if$
  }
if$
duplicate$
year field.or.null purify$ #-1 #2 substring$
swap$
*
'label :=
% year field.or.null purify$ #-1 #4 substring$
% *
sortify 'sort.label :=
}

FUNCTION {sort.format.names}
{ 's :=
#1 'nameptr :=
""
s num.names$ 'numnames :=
numnames 'namesleft :=
  { namesleft #0 > }
  { nameptr #1 >
	{ "   " * }
	'skip$
    if$
    s nameptr "{vv{ } }{ll{ }}{  ff{ }}{  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 {year.sort}
{ year empty$
  { key empty$
      { "to sort, need year or key in " cite$ * warning$
        ""
      }
      { key sortify }
    if$
  }
  { year sort.format.names }
if$
}

FUNCTION {author.sort}
{ author empty$
  { key empty$
	{ "to sort, need author or key in " cite$ * warning$
	  ""
	}
	{ key sortify }
    if$
  }
  { author sort.format.names }
if$
}

FUNCTION {author.editor.sort}
{ author empty$
  { editor empty$
	{ key empty$
	    { "to sort, need author, editor, or key in " cite$ * warning$
	      ""
	    }
	    { key sortify }
	  if$
	}
	{ editor sort.format.names }
    if$
  }
  { author sort.format.names }
if$
}

FUNCTION {author.organization.sort}
{ author empty$
  { organization empty$
	{ key empty$
	    { "to sort, need author, organization, or key in " cite$ * warning$
	      ""
	    }
	    { key sortify }
	  if$
	}
	{ "The " #4 organization chop.word sortify }
    if$
  }
  { author sort.format.names }
if$
}

FUNCTION {editor.organization.sort}
{ editor empty$
  { organization empty$
	{ key empty$
	    { "to sort, need editor, organization, or key in " cite$ * warning$
	      ""
	    }
	    { key sortify }
	  if$
	}
	{ "The " #4 organization chop.word sortify }
    if$
  }
  { editor sort.format.names }
if$
}

FUNCTION {oldpresort}
{ calc.label
sort.label
"    "
*
type$ "book" =
type$ "inbook" =
or
  'author.editor.sort
  { type$ "proceedings" =
	'editor.organization.sort
	{ type$ "manual" =
	    'author.organization.sort
	    'author.sort
	  if$
	}
    if$
  }
if$
*
"    "
*
year field.or.null sortify
*
"    "
*
title field.or.null
sort.format.title
*
#1 entry.max$ substring$
'sort.key$ :=
}

FUNCTION{convert.month} 
{"l" change.case$
%duplicate$ top$ 
duplicate$ duplicate$ "jan" = swap$ duplicate$ "january" = swap$ "januar" = or or
{ #1 }
{ duplicate$ duplicate$ "feb" = swap$ duplicate$ "february" = swap$ "februar" = or or
{ #2 }
{ duplicate$ duplicate$ "mar" = swap$ duplicate$ "march" = swap$ "maerz" = or or
{ #3 }
{ duplicate$ duplicate$ "apr" = swap$ "april" = or
{ #4 }
{ duplicate$ duplicate$ "may" = swap$ "mai" = or
{ #5 }
{ duplicate$ duplicate$ "jun" = swap$ duplicate$ "june" = swap$ "juni" = or or
{ #6 }
{ duplicate$ duplicate$ "jul" = swap$ duplicate$ "july" = swap$ "juli" = or or
{ #8 }
{ duplicate$ duplicate$ "aug" = swap$ "august" = or
{ #9 }
{ duplicate$ duplicate$ "sep" = swap$ "september" = or
{ #10 }
{ duplicate$ duplicate$ "oct" = swap$ duplicate$ "october" = swap$ "oktober" = or or
{ #11 }
{ duplicate$ duplicate$ "nov" = swap$ "november" = or
{ #12 }
{ duplicate$ duplicate$ "dec" = swap$ duplicate$ "december" = swap$ "dezember" = or or
{ #13 } 
{ duplicate$ duplicate$ text.length$ #1 substring$ chr.to.int$ #48 -
swap$
duplicate$
text.length$ #1 >
{ duplicate$ text.length$ #1 - #1 substring$ chr.to.int$ #49 =
{ #10 + }
'skip$
if$ } if$ } if$ } if$ } if$ }
if$ } if$ } if$ } if$ } if$ }
if$ } if$ } if$ } if$
swap$ pop$
}

INTEGERS{qm}
FUNCTION{mult}
{
#0 'qm :=
{duplicate$ #0 >}
{swap$ duplicate$ qm + 'qm := swap$ #1 -}
while$
pop$ pop$
qm
}

INTEGERS{qy}
FUNCTION{convert.year}
{
duplicate$

empty$
{#0 'qy :=}
{
duplicate$ #1 #1 substring$ duplicate$ duplicate$ "+" = swap$ "-" = or
{swap$
duplicate$ text.length$ #1 - #2 swap$ substring$}
'swap$
if$
duplicate$ duplicate$ text.length$ #1 substring$ chr.to.int$ #48 - 'qy := 

duplicate$ text.length$ #2 <
'skip$
{
duplicate$ duplicate$ text.length$ #1 - #1 substring$
chr.to.int$ #48 - #10 mult qy + 'qy :=

duplicate$ text.length$ #3 <
'skip$
{
duplicate$ duplicate$ text.length$ #2 - #1 substring$
chr.to.int$ #48 - #100 mult qy + 'qy :=

duplicate$ text.length$ #4 <
'skip$
{
duplicate$ duplicate$ text.length$ #3 - #1 substring$
chr.to.int$ #48 - #1000 mult qy + 'qy :=}
if$

}
if$

}
if$
swap$
"-" =
{#2199 qy + 'qy :=}
{#2200 qy - 'qy :=}
if$
}
if$
pop$
qy
}

FUNCTION{larson}
{
% Hack for taking care of Jean Larson's 1973/74-year-problem.
month missing$
{duplicate$ text.length$ #6 >
{
duplicate$ duplicate$ text.length$ #2 - #1 substring$ "/" =
{
duplicate$ duplicate$ #1 swap$ text.length$ #5 - substring$
swap$ duplicate$ text.length$ #1 - #2 substring$
*
#0 }
{ #7 } if$ } {#7 } if$}
{month convert.month}
if$
#13 swap$ -
}

INTEGERS{qd}
FUNCTION{div}
{
'qd :=
#1 +
#0
{swap$ duplicate$ qd >}
{qd - swap$ #1 +}
while$
pop$
}

INTEGERS{qx}
FUNCTION{coconut}
{
#14 mult + 'qx :=
qx #1296 div
duplicate$ duplicate$
#9 >
{#55 +}
{#48 +}
if$
int.to.chr$
swap$
#1296 mult qx swap$ - 'qx :=
qx #36 div
duplicate$ duplicate$ 
#9 >
{#55 +}
{#48 +}
if$
int.to.chr$
swap$
#36 mult qx swap$ -
duplicate$
#9 >
{#87 +}
{#48 +}
if$
int.to.chr$
* *
}

FUNCTION{varpresort1}
{
calc.label sort.label
type$ "book" =
type$ "inbook" =
or
  'author.editor.sort
  { type$ "proceedings" =
	'editor.organization.sort
	{ type$ "manual" =
	    'author.organization.sort
	    'author.sort
	  if$
	}
    if$
  }
if$
*
year larson swap$ convert.year
coconut
duplicate$ top$
%int.to.str$
%field.or.null sortify
swap$
*
title field.or.null sort.format.title
*
#1 entry.max$ substring$
'sort.key$ :=
}

ITERATE {varpresort1}

SORT

STRINGS { longest.label last.sort.label next.extra }

INTEGERS { longest.label.width last.extra.num }

FUNCTION {initialize.longest.label}
{ "" 'longest.label :=
#0 int.to.chr$ 'last.sort.label :=
"" 'next.extra :=
#0 'longest.label.width :=
#0 'last.extra.num :=
}

FUNCTION {forward.pass}
{ last.sort.label sort.label =
  { last.extra.num #1 + 'last.extra.num :=
    last.extra.num int.to.chr$ 'extra.label :=
  }
  { "a" chr.to.int$ 'last.extra.num :=
    "" 'extra.label :=
    sort.label 'last.sort.label :=
  }
if$
}

FUNCTION {reverse.pass}
{ next.extra "b" =
  { "a" 'extra.label := }
  'skip$
if$
label extra.label * 'label :=
label width$ longest.label.width >
  { label 'longest.label :=
    label width$ 'longest.label.width :=
  }
  'skip$
if$
extra.label 'next.extra :=
}

EXECUTE {initialize.longest.label}

ITERATE {forward.pass}

REVERSE {reverse.pass}

FUNCTION {begin.bib}
{ et.al.char.used
  { "\newcommand{\etalchar}[1]{$^{#1}$}" write$ newline$ }
  'skip$
if$
preamble$ empty$
  'skip$
  { preamble$ write$ newline$ }
if$
"\begin{thebibliography}{"  longest.label  * "}" * write$ newline$
}

EXECUTE {begin.bib}

EXECUTE {init.state.consts}

ITERATE {call.type$}

FUNCTION {end.bib}
{ newline$
"\end{thebibliography}" write$ newline$
}

EXECUTE {end.bib}