%%
%% This is file `agu.bst', generated
%% on <1994/5/27> with the docstrip utility (2.2e).
%%
%% The original source files were:
%%
%% genbst.mbs  (with options: `ay,seq-lab,nm-rev1,nmlm,x9,m1,dt-end,thtit-a,vol-it,volp-com,edby,blk-com,pp,ed,abr,lab-it,and-com,em-it')
%% ----------------------------------------
%% *** For publications of the American Geophysical Union ***
%%
%% (Here are the specifications of the source file)
%% \def\filename{genbst.mbs}
%% \def\filedate{1994 February 7}
%% \def\fileversion{1.2}
%%   For use with BibTeX version 0.99a or later, LaTeX version 2.09
%%-------------------------------------------------------------------
%% NOTICE:
%% This file may be used for non-profit purposes.
%% It may not be distributed in exchange for money,
%%   other than distribution costs.
%%
%% The author provides it `as is' and does not guarantee it in any way.
%%
%% Copyright (C) 1993 Patrick W. Daly
%% Max-Planck-Institut f\"ur Aeronomie
%% Postfach 20
%% D-37189 Katlenburg-Lindau
%% Germany
%%
%% E-mail:
%% SPAN--     nsp::linmpi::daly    (note nsp also known as ecd1)
%% Internet-- [email protected]
%%-----------------------------------------------------------
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
%%---------------------------------------------------------------------
% This is an author-year citation style bibliography. As such, it is
% non-standard LaTeX, and requires a style option to function properly.
% An appropriate style option is:   natbib.sty    by Patrick W. Daly
% The form of the \bibitem entries is
%   \bibitem[Jones et al.(1990)]{key}...
% The essential feature is that the label (the part in brackets) consists
% of the author names, as they should appear in the citation, with the year
% in parentheses following. There must be no space before the opening
% parenthesis!
% In natbib.sty, it is possible to define the type of enclosures that is
% really wanted (brackets or parentheses), but in either case, there must
% be parentheses in the label.
% The \cite command functions as follows:
%   \cite{key} ==>>                Jones et al. (1990)
%   \cite[]{key} ==>>              (Jones et al., 1990)
%   \cite[chap. 2]{key} ==>>       (Jones et al., 1990, chap. 2)
%   \cite[e.g.][]{key} ==>>        (e.g. Jones et al., 1990)
%   \cite[e.g.][p. 32]{key} ==>>   (e.g. Jones et al., p. 32)
%   \citeauthor{key}               Jones et al.
%   \citeyear{key}                 1990
%%---------------------------------------------------------------------

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

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

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

INTEGERS { nameptr namesleft numnames }

FUNCTION {format.names}
{ 's :=
 #1 'nameptr :=
 s num.names$ 'numnames :=
 numnames 'namesleft :=
   { namesleft #0 > }
   { nameptr #1 >
       { s nameptr "{f.~}{vv~}{ll}{, jj}" format.name$ 't := }
       { s nameptr "{vv~}{ll}{, jj}{, f.}" format.name$ 't := }
     if$
     nameptr #1 >
       {
         nameptr #2 =
         numnames #9 > and
           { "others" 't :=
             #1 'namesleft := }
           'skip$
         if$
         namesleft #1 >
           { ", " * t * }
           {
             "," *
             t "others" =
               { " et~al." * }
               { " and " * t * }
             if$
           }
         if$
       }
       't
     if$
     nameptr #1 + 'nameptr :=
     namesleft #1 - 'namesleft :=
   }
 while$
}

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

FUNCTION {format.key}
{ empty$
   { key field.or.null }
   { "" }
 if$
}

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

FUNCTION {format.editors}
{ editor empty$
   { "" }
   { editor format.names
     editor num.names$ #1 >
       { " (eds.)" * }
       { " (ed.)" * }
     if$
   }
 if$
}

FUNCTION {format.in.editors}
{ editor empty$
   { "" }
   { editor format.names.ed
   }
 if$
}

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

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 {word.in}
{ "in " }

FUNCTION {format.date}
{ year duplicate$ empty$
   { "empty year in " cite$ * "; set to ????" * warning$
      pop$ "????" }
   'skip$
 if$
 extra.label *
}

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$
   { "" }
   { "vol." 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 =
           { "no." }
           { "No." }
         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$ " edn." * }
       { edition "t" change.case$ " edn." * }
     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 multi.page.check
       { "pp." pages n.dashify tie.or.space.connect }
       { "p." pages tie.or.space.connect }
     if$
   }
 if$
}

FUNCTION {format.vol.num.pages}
{ volume field.or.null
 emphasize
 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$
       { "chap." }
       { 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$
       { word.in booktitle emphasize * }
       { word.in booktitle emphasize * ", edited by " *
         format.in.editors * }
     if$
   }
 if$
}

FUNCTION {format.thesis.type}
{ type empty$
   'skip$
   { pop$
     type "t" change.case$
   }
 if$
}

FUNCTION {format.tr.number}
{ type empty$
   { "Tech. Rep." }
   'type
 if$
 number empty$
   { "t" change.case$ }
   { number tie.or.space.connect }
 if$
}

FUNCTION {format.article.crossref}
{
 word.in
 "\cite{" * crossref * "}" *
}

FUNCTION {format.book.crossref}
{ volume empty$
   { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
     word.in
   }
   { "vol." volume tie.or.space.connect
     " of " *
   }
 if$
 "\cite{" * crossref * "}" *
}

FUNCTION {format.incoll.inproc.crossref}
{
 word.in
 "\cite{" * crossref * "}" *
}

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

FUNCTION {book}
{ output.bibitem
 author empty$
   { format.editors "author and editor" output.check
     editor format.key output
   }
   { format.authors output.nonnull
     crossref missing$
       { "author and editor" editor either.or.check }
       'skip$
     if$
   }
 if$
 format.btitle "title" output.check
 crossref missing$
   { format.bvolume output
     format.number.series output
     new.sentence
     publisher "publisher" output.check
     address output
   }
   {
     format.book.crossref output.nonnull
   }
 if$
 format.edition output
 note output
 format.date "year" output.check
 fin.entry
}

FUNCTION {booklet}
{ output.bibitem
 format.authors output
 author format.key output
 format.title "title" output.check
 howpublished output
 address output
 note output
 format.date "year" output.check
 fin.entry
}

FUNCTION {inbook}
{ output.bibitem
 author empty$
   { format.editors "author and editor" output.check
     editor format.key output
   }
   { format.authors output.nonnull
     crossref missing$
       { "author and editor" editor either.or.check }
       'skip$
     if$
   }
 if$
 format.btitle "title" output.check
 crossref missing$
   { format.bvolume output
     format.chapter.pages "chapter and pages" output.check
     format.number.series output
     new.sentence
     publisher "publisher" output.check
     address output
   }
   { format.chapter.pages "chapter and pages" output.check
     format.book.crossref output.nonnull
   }
 if$
 format.edition output
 note output
 format.date "year" output.check
 fin.entry
}

FUNCTION {incollection}
{ output.bibitem
 format.authors "author" output.check
 author format.key output
 format.title "title" output.check
 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.incoll.inproc.crossref output.nonnull
     format.chapter.pages output
   }
 if$
 note output
 format.date "year" output.check
 fin.entry
}

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

FUNCTION {conference} { inproceedings }

FUNCTION {manual}
{ output.bibitem
 format.authors output
 author format.key output
 format.btitle "title" output.check
 organization output
 address output
 format.edition output
 note output
 format.date "year" output.check
 fin.entry
}

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

FUNCTION {misc}
{ output.bibitem
 format.authors output
 author format.key output
 format.title output
 howpublished output
 note output
 format.date "year" output.check
 fin.entry
}

FUNCTION {phdthesis}
{ output.bibitem
 format.authors "author" output.check
 author format.key output
 format.title "title" output.check
 "Ph.D. thesis" format.thesis.type output.nonnull
 school "school" output.check
 address output
 note output
 format.date "year" output.check
 fin.entry
}

FUNCTION {proceedings}
{ output.bibitem
 format.editors output
 editor format.key output
 format.btitle "title" output.check
 format.bvolume output
 format.number.series output
 address output
 new.sentence
 organization output
 publisher output
 note output
 format.date "year" output.check
 fin.entry
}

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

FUNCTION {unpublished}
{ output.bibitem
 format.authors "author" output.check
 author format.key output
 format.title "title" output.check
 note "note" output.check
 format.date "year" output.check
 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 {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 {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$
}

FUNCTION {format.lab.names}
{ 's :=
 s #1 "{vv~}{ll}" format.name$
 s num.names$ duplicate$
 #2 >
   { pop$ " et~al." * }
   { #2 <
       'skip$
       { s #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
           { " et~al." * }
           { " and " * s #2 "{vv~}{ll}" format.name$ * }
         if$
       }
     if$
   }
 if$
}

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

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

FUNCTION {calc.label}
{ type$ "book" =
 type$ "inbook" =
 or
   'author.editor.key.label
   { type$ "proceedings" =
       'editor.key.label
       'author.key.label
     if$
   }
 if$
 emphasize
 "("
 *
 year duplicate$ empty$
    { pop$ "????" }
    { purify$ #-1 #4 substring$ }
 if$
 *
 'label :=
}

FUNCTION {sort.format.names}
{ 's :=
 #1 'nameptr :=
 ""
 s num.names$ 'numnames :=
 numnames 'namesleft :=
   { namesleft #0 > }
   { nameptr #1 >
       { "   " * }
       'skip$
     if$
     s nameptr
     "{vv{ } }{ll{ }}{  f{ }}{  jj{ }}"
     format.name$ 't :=
     nameptr numnames = t "others" = and
       { "et al" * }
       { numnames #2 > nameptr #2 = and
         { "zzzzzz" * #1 'namesleft := }
         { t sortify * }
       if$
       }
     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$
}

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$
 'sort.label :=
 sort.label
 *
 "    "
 *
 title field.or.null
 sort.format.title
 *
 #1 entry.max$ substring$
 'sort.key$ :=
}

ITERATE {presort}

SORT

STRINGS { last.label next.extra }

INTEGERS { last.extra.num }

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

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$
 extra.label 'next.extra :=
 label extra.label * 'label :=
}

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

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

EXECUTE {begin.bib}

EXECUTE {init.state.consts}

ITERATE {call.type$}

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

EXECUTE {end.bib}
%% End of customized bst file