%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                          begin booksty.bst                                %
%                             version 1.0                                   %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                           %
%   This file modifies the APS files in the REVTeX 3.0 distribution.        %
%   Version 3.0 of REVTeX, November 10, 1992.                               %
%                                                                           %
%   See the REVTeX 3.0 README file for restrictions and more information.   %
%                                                                           %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%       This is a bibtex style file to produce Physical-Review--style       %
%            references for inclusion in LaTeX/REVTeX documents             %
%            with the modification that citation is with first              %
%             authors name and year and so is itemizing in the              %
%            reference list, which appears in alphabethic order.            %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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 }


INTEGERS { vol.used i.temp }

STRINGS { s t }



FUNCTION {output}
{ duplicate$ empty$
    'pop$
    'write$
  if$
}

% Note: nothing left on stack for future processing in bibitem.
FUNCTION {output.bibitem}
{ newline$
  "\bibitem[" write$
  label write$
  "]{" write$
  cite$ write$
  "}" write$
  newline$
}

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

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$ "" }
    { "{\em " swap$ * "}" * }
  if$
}

FUNCTION {embolden}
{ duplicate$ empty$
    { pop$ "" }
    { "{\bf " swap$ * "}" * }
  if$
}

FUNCTION {paren}
{ duplicate$ empty$
    { pop$ "" }
    { "(" swap$ * ")" * }
  if$
}

FUNCTION {titlequote}
{ duplicate$ empty$
    { pop$ "" }
    { "``" swap$ * ",'' " * }
  if$
}

INTEGERS { nameptr namesleft numnames }
INTEGERS { etal }

FUNCTION {format.names}
{ 's :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  numnames #4 >
  s numnames "{ll}" format.name$ "others" = numnames #1 > and
  or 'etal :=
  etal
    { #1 #1 + 'namesleft := }
    { numnames 'namesleft := }
  if$
    { namesleft #0 > }
    { s nameptr "{f. }{vv~}{ll}{, jj}" format.name$ 't :=
      nameptr #1 >
        { namesleft #1 >
            { ", " * t * }
            { nameptr #2 >
                { "," * }
                'skip$
              if$
              t "others" =
              etal or
                { " {\it et~al.}" * }
                { " und " * t * }
              if$
            }
          if$
        }
        't
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {format.authors}
{ author empty$
    { "" }
    { author format.names }
  if$
}

FUNCTION {format.edited}
{ editor empty$
    { "" }
    { "edited by " editor format.names * }
  if$
}

FUNCTION {format.title}
{ title empty$
    { "" }
    { title titlequote }
  if$
}

FUNCTION {lc.first.letter}
{ 't :=
  ""
  t #1 #1 substring$
  "l" change.case$ *
  t #2 global.max$ substring$
  *
}

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$
}


FUNCTION {first.page}
{ 't :=
  ""
    {  t empty$ not t #1 #1 substring$ "-" = not and }
    { t #1 #1 substring$ *
      t #2 global.max$ substring$ 't :=
    }
  while$
}

FUNCTION {format.date}
{ year empty$
    { "" }
    'year
  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$
}

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 multi.page.check
        { "pp.\ " pages n.dashify * }
        { "p.\ " pages * }
      if$
    }
  if$
}

FUNCTION {format.pages.a}
{ pages empty$
    { "" }
    { "page" pages first.page tie.or.space.connect }
  if$
}

FUNCTION {format.vol.num.pages}
{ volume field.or.null embolden
  " " swap$ * *
  pages empty$
    'skip$
    { duplicate$ empty$
        { pop$ format.pages.a }
        { ", " * pages n.dashify * }
      if$
    }
  if$
}

FUNCTION {if.comma}
{   { ", " * }
    'skip$
  if$
}

% pushes "" if value passed is empty$
FUNCTION {push.string}
{ 'i.temp :=
  duplicate$ empty$
    { pop$ "" }
    { i.temp if.comma }
  if$
}

% pushes "" if value passed is empty$
FUNCTION {push.string.check}
{ 'i.temp :=
  duplicate$ empty$
    { pop$ "Warning: " swap$ * " missing in entry " cite$ "." * * * warning$
      ""
     }
    { swap$ pop$ i.temp if.comma }
  if$
}

% adds nothing if value passed is empty$
FUNCTION {add.string}
{ 'i.temp :=
  duplicate$ empty$
    { pop$ }
    { * i.temp if.comma }
  if$
}

% adds nothing if value passed is empty$
FUNCTION {add.string.check}
{ 'i.temp :=
  duplicate$ empty$
    { pop$ "Warning: " swap$ * " missing in entry " cite$ "." * * * warning$ }
    { swap$ pop$ *
      i.temp if.comma
    }
  if$
}

FUNCTION {format.vol.page}
{ "volume" volume embolden #1 push.string.check
  " " *
  "pages" pages n.dashify #0 add.string.check
  " " *
}

FUNCTION {empty.misc.check}
{ author empty$ title empty$ howpublished empty$
  year empty$ note empty$ and and and 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$
    { "Technical Report" }
    'type
  if$
  number empty$
    { "t" change.case$ }
    { type empty$
        { " No.~" * }
        { " " * }
      if$
      number *
    }
  if$
}


FUNCTION {format.etc}
{ vol.used
    'skip$
    { number empty$
        { volume empty$
            'skip$
            { "Vol.~" volume * *
              chapter empty$ pages empty$ note empty$ and and
                  'skip$
                  { ", " * }
              if$
            }
          if$
        }
        { "No.~" number * *
          chapter empty$ pages empty$ note empty$ and and
              'skip$
              { ", " * }
          if$
        }
      if$
    }
  if$
  chapter empty$
    'skip$
    { type empty$
        { "Chap.~" chapter * * }
        { type "u" change.case$ "l" change.case$ " " chapter * * * }
      if$
      pages empty$ note empty$ and
        'skip$
        { ", " * }
      if$
    }
  if$
  pages empty$
    'skip$
    { format.pages *
      note empty$
        'skip$
        { ", " * }
      if$
    }
  if$
  note empty$
    'skip$
    { note lc.first.letter * }
  if$
}


FUNCTION {format.pub.add.year.etc}
{ " ("
  publisher empty$
    { "PUBLISHER" "No publisher for entry " cite$ "." * * warning$ }
    { publisher }
  if$
  ", " * *
  address empty$
    { "" "Missing address in entry " cite$ * "." * warning$ }
    { address }
  if$
  address empty$
    'skip$
    { ", " * * }
  if$
  year empty$
   { "YEAR" }
   'year
  if$
  ")" * *
  volume empty$ not number empty$ not or title empty$ series empty$ or and
  chapter empty$ not or
  pages empty$ not or type empty$ not or note empty$ not or
    { ", " *
      format.etc
    }
    'skip$
  if$
}

FUNCTION {format.bedition}
{ edition empty$
    { "" }
    { edition "l" change.case$
      duplicate$ "first" =
        { pop$ "1st " }
        { duplicate$ "second" =
            { pop$ "2nd " }
            { duplicate$ "third" =
                { pop$ "3rd " }
                'skip$
              if$
            }
          if$
        }
      if$
      " ed." *
    }
  if$
}

FUNCTION {format.title.and.series.and.org}
{ #0 'vol.used :=
  ""
  duplicate$ 's :=
  title empty$
    'skip$
    { title 's := }
  if$
  booktitle empty$
    'skip$
    { booktitle 's := }
  if$
  booktitle empty$
    'skip$
    { format.title * }
  if$
  s empty$
    'skip$
    { type$ "inproceedings" = type$ "inbook" = or
        { " in " * }
        { author empty$ not editor empty$ not and
            { " in " * }
            'skip$
          if$
        }
      if$
      s emphasize
        series empty$ editor empty$ edition empty$ and and not
        type$ "inproceedings" =   organization empty$ not    and
        type$ "proceedings"   =   organization empty$ not    and or     or
          add.string
    }
  if$
  series empty$
    'skip$
    { s empty$
         'skip$
         { number empty$
             { volume empty$
                 'skip$
                 { "Vol.~" volume " of " * * * #1 'vol.used := }
               if$
             }
             { "No.~" number " in " * * * #1 'vol.used := }
           if$
         }
      if$
      series emphasize
        edition empty$ not
        editor empty$ not
        type$ "inproceedings" =   organization empty$ not    and
        type$ "proceedings" =   organization empty$ not      and
        or   or   or
          add.string
    }
  if$
  type$ "inproceedings" =    type$ "proceedings" =    or
    { organization empty$
        'skip$
        { organization editor empty$ edition empty$ and not add.string }
      if$
    }
    'skip$
  if$
}


FUNCTION {article}
{ output.bibitem
  "author" format.authors #1 push.string.check
  "title" format.title #0 add.string.check
  "journal" journal #0 add.string.check " " *
  output
  format.vol.page #0 push.string
  " " *
  "date" format.date paren #0 add.string.check
  note empty$
    'skip$
    { ", " * note lc.first.letter * }
  if$
  fin.entry
  crossref empty$
    'skip$
    { "See Ref.\ \cite{" crossref "}." * * write$ newline$ }
  if$
}

FUNCTION {book}
{ output.bibitem
  format.authors #1 push.string
  "title" format.title.and.series.and.org #0 add.string.check
  format.bedition editor empty$ not add.string
  output
  format.edited #0 push.string
  format.pub.add.year.etc #0 add.string
  fin.entry
  crossref empty$
    'skip$
    { "See Ref.\ \cite{" crossref "}." * * write$ newline$ }
  if$
}

FUNCTION {booklet}
{ output.bibitem
  format.authors #1 push.string
  "title" format.title #0 add.string.check
  howpublished empty$
    'skip$
    { ", " howpublished * * }
  if$
  address empty$
    'skip$
    { ", " address * * }
  if$
  year empty$
    'skip$
    { " (" year ")" * * * }
  if$
  note empty$
    'skip$
    { ", " note  lc.first.letter * * }
  if$
  fin.entry
}

FUNCTION {inbook} { book }

FUNCTION {incollection} { book }

FUNCTION {inproceedings}{ book }

FUNCTION {proceedings} { book }

FUNCTION {conference} { book }



FUNCTION {manual}
{ output.bibitem
  ""
  author empty$
    'skip$
    { format.authors #1 add.string }
  if$
  format.btitle
    edition empty$ address empty$ organization empty$ year empty$ note empty$
                           and and and and not
      add.string
  edition empty$
    'skip$
    { format.bedition
        organization empty$ address empty$ year empty$ note empty$
                           and and and not
          add.string
    }
  if$
  organization empty$
    'skip$
    { organization
        address empty$ year empty$ note empty$ and and not
          add.string
    }
  if$
  address empty$
    'skip$
    { address   year empty$ note empty$ and not   add.string }
  if$
  year empty$
    'skip$
    { year   note empty$ not   add.string }
  if$
  note empty$
    'skip$
    { note lc.first.letter #0 add.string }
  if$
  fin.entry
}

FUNCTION {mastersthesis}
{ output.bibitem
  "author" format.authors #1 push.string.check
  title empty$
    'skip$
    { "We don't use thesis titles in Phys. Rev, see \cite{"
      cite$ "}" * * warning$
    }
  if$
  "Master's thesis" format.thesis.type   #1   add.string
  "school"   school   #1   add.string.check
  address #1 add.string
  "year" format.date   note empty$ not   add.string.check
  note empty$
    'skip$
    { note lc.first.letter * }
  if$
  fin.entry
}

FUNCTION {phdthesis}
{ output.bibitem
  "author" format.authors #1 push.string.check
  "title" format.title #0 add.string.check
  "Dissertation" format.thesis.type   #1   add.string
  "school"   school   #1   add.string.check
  address #1 add.string
  "year" format.date   note empty$ not   add.string.check
  note empty$
    'skip$
    { note lc.first.letter * }
  if$
  fin.entry
}

FUNCTION {misc}
{ output.bibitem
  format.authors
    title empty$ howpublished empty$
      year empty$ note empty$ and and and not push.string
  format.title
    howpublished empty$ year empty$ note empty$
      and and not add.string
  howpublished
    year empty$ note empty$ and not add.string
  format.date note empty$ not add.string
  note empty$
    'skip$
    { note
      author empty$ title empty$ howpublished empty$
      year empty$ and and and
        'skip$
        'lc.first.letter
      if$
      #0 add.string
    }
  if$
  fin.entry
  empty.misc.check
}


FUNCTION {techreport}
{ output.bibitem
  "author" format.authors #1 push.string.check
  title empty$
    'skip$
    { "We chuck the title of techreports in Phys. Rev.---\cite{"
       cite$ "}." * * warning$
    }
  if$
  format.tr.number
    institution empty$ address empty$ note empty$ and and not add.string
  "institution"  institution  address empty$ note empty$ and not
    add.string.check
  address #0 add.string
  " (unpublished)" note empty$ not add.string
  note empty$
    'skip$
    { note lc.first.letter * }
  if$
  fin.entry
}



FUNCTION {unpublished}
{ output.bibitem
  "author" format.authors   note empty$ not   push.string.check
  note empty$
    'skip$
    { note lc.first.letter #0 add.string }
  if$
  " (\unpublished)" *
  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 Comput. Surv."}
MACRO {acta} {"Acta Inf."}
MACRO {applopt} {"Appl. Opt."}
MACRO {cacm} {"Commun. ACM"}
MACRO {ibmjrd} {"IBM J. Res. Dev."}
MACRO {ibmsj} {"IBM Syst.~J."}
MACRO {ieeese} {"IEEE Trans. Softw. Eng."}
MACRO {ieeetc} {"IEEE Trans. Comput."}
MACRO {ieeetcad}
 {"IEEE Trans. Comput.-Aided Design Integrated Circuits"}
MACRO {ipl} {"Inf. Process. Lett."}
MACRO {jacm} {"J.~ACM"}
MACRO {jcss} {"J.~Comput. Syst. Sci."}
MACRO {scp} {"Sci. Comput. Programming"}
MACRO {sicomp} {"SIAM J. Comput."}
MACRO {tocs} {"ACM Trans. Comput. Syst."}
MACRO {tods} {"ACM Trans. Database Syst."}
MACRO {tog} {"ACM Trans. Gr."}
MACRO {toms} {"ACM Trans. Math. Softw."}
MACRO {toois} {"ACM Trans. Office Inf. Syst."}
MACRO {toplas} {"ACM Trans. Prog. Lang. Syst."}
MACRO {tcs} {"Theor. Comput. Sci."}
MACRO {anp} {"Adv. Nucl. Phys."}
MACRO {ap} {"Ann. Phys."}
MACRO {arnpc} {"Annu. Rev. Nucl. Part. Sci."}
MACRO {baps} {"Bull. Am. Phys. Soc."}
MACRO {cp} {"Computers Phys."}
MACRO {jp} {"J. Phys."}
MACRO {josa} {"J. Opt. Soc. Am."}
MACRO {josaa} {"J. Opt. Soc. Am. A"}
MACRO {josab} {"J. Opt. Soc. Am. B"}
MACRO {nim} {"Nucl. Instrum. Meth."}
MACRO {np} {"Nucl. Phys."}
MACRO {rmp} {"Rev. Mod. Phys."}
MACRO {physica} {"Physica"}
MACRO {pl} {"Phys. Lett."}
MACRO {plb} {"Phys. Lett. B"}
MACRO {pr} {"Phys. Rev."}
MACRO {pra} {"Phys. Rev. A"}
MACRO {prb} {"Phys. Rev. B"}
MACRO {prc} {"Phys. Rev. C"}
MACRO {prd} {"Phys. Rev. D"}
MACRO {pre} {"Phys. Rev. E"}
MACRO {prl} {"Phys. Rev. Lett."}
MACRO {prep} {"Phys. Rep."}
MACRO {ps} {"Phys. Scr."}
MACRO {rpp} {"Rep. Prog. Phys."}
MACRO {sjnp} {"Sov. J. Nucl. Phys."}
MACRO {springmp} {"Springer Tracts in Modern Physics"}
MACRO {yadfiz} {"Yad. Fiz."}
MACRO {zp} {"Z. Phys."}



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$
}

%                       There are three apalike cases: one person (Jones),
%                       two (Jones and de~Bruijn), and more (Jones {\em et~al.}).
%                       This function is much like format.crossref.editors.
%
FUNCTION {format.lab.names}
{ 's :=
  s #1 "{vv~}{ll}" format.name$
  s num.names$ duplicate$
  #2 >
    { pop$ " {\em et~al.}" * }
    { #2 <
        'skip$
        { s #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
            { " {\em et~al.}" * }
            { " und " * s #2 "{vv~}{ll}" format.name$ * }
          if$
        }
      if$
    }
  if$
}

FUNCTION {author.key.label}
{ author empty$
    { key empty$
        { cite$ #1 #3 substring$ }
        'key                                    % apalike uses the whole key
      if$
    }
    { author format.lab.names }
  if$
}

FUNCTION {author.editor.key.label}
{ author empty$
    { editor empty$
        { key empty$
            { cite$ #1 #3 substring$ }
            'key                                % apalike uses the whole key
          if$
        }
        { editor format.lab.names }
      if$
    }
    { author format.lab.names }
  if$
}

FUNCTION {editor.key.label}
{ editor empty$
    { key empty$
        { cite$ #1 #3 substring$ }
        'key                    % apalike uses the whole key, no organization
      if$
    }
    { editor format.lab.names }
  if$
}

FUNCTION {calc.label}
{ type$ "book" =
  type$ "inbook" =
  or
    'author.editor.key.label
    { type$ "proceedings" =
        'editor.key.label                       % apalike ignores organization
        'author.key.label                       % for labeling and sorting
      if$
    }
  if$
  ", "                                                  % these three lines are
  *                                                     % for apalike, which
  year field.or.null purify$ #-1 #4 substring$          % uses all four digits
  *
  'label :=
}

FUNCTION {sort.format.names}
{ 's :=
  #1 'nameptr :=
  ""
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    { nameptr #1 >
        { "   " * }
        'skip$
      if$                                               % apalike uses initials
      s nameptr "{vv{ } }{ll{ }}{  f{ }}{  jj{ }}" format.name$ 't := % <= here
      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$
    { 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 {editor.sort}
{ editor empty$
    { key empty$
        { "to sort, need editor or key in " cite$ * warning$
          ""
        }
        { key sortify }
      if$
    }
    { editor sort.format.names }
  if$
}

%                       apalike uses two sorting passes; the first one sets the
%                       labels so that the `a's, `b's, etc. can be computed;
%                       the second pass puts the references in "correct" order.
%                       The presort function is for the first pass. It computes
%                       label, sort.label, and title, and then concatenates.
FUNCTION {presort}
{ calc.label
  label sortify
  "    "
  *
  type$ "book" =
  type$ "inbook" =
  or
    'author.editor.sort
    { type$ "proceedings" =
        'editor.sort
        'author.sort
      if$
    }
  if$
  #1 entry.max$ substring$      % for
  'sort.label :=                % apalike
  sort.label                    % style
  *
  "    "
  *
  title field.or.null
  sort.format.title
  *
  #1 entry.max$ substring$
  'sort.key$ :=
}

ITERATE {presort}

SORT            % by label, sort.label, title---for final label calculation

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

INTEGERS { last.extra.num }             % there are none in the bibliography

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

FUNCTION {forward.pass}
{ last.label 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 :=
      label 'last.label :=
    }
  if$
}

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

EXECUTE {initialize.extra.label.stuff}

ITERATE {forward.pass}

REVERSE {reverse.pass}

%                               Now that the label is right we sort for real,
%                               on sort.label then year then title.  This is
%                               for the second sorting 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 bibliography order

FUNCTION {begin.bib}
{ preamble$ empty$
    'skip$
    { preamble$ write$ newline$ }
  if$
  "\begin{thebibliography}{"  longest.label  * "}" * write$ newline$
}

EXECUTE {begin.bib}

ITERATE {call.type$}

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

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                            end booksty.bst                                %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

