Physics307L F07:People/Smith/styles/natbib

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%% %% This is file `natbib.sty', %% generated with the docstrip utility. %% %% The original source files were: %% %% natbib.dtx (with options: `package,all') %% %% Full documentation can be obtained by LaTeXing the source file: %% natbib.dtx. %% %% Only a few abbreviated comments remain here to describe the usage. %% \NeedsTeXFormat{LaTeX2e}[1994/06/01] \ProvidesPackage{natbib}[1998/07/14 6.8c (PWD)] %\ProvidesPackage{styles/natbib}[1998/07/14 6.8c (PWD)] %%------------------------------------------------------------------- %% 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. %% %% Natbib coding copyright (C) 1994--1998 Patrick W. Daly %% Max-Planck-Institut f\"ur Aeronomie %% Max-Planck-Str. 2 %% D-37191 Katlenburg-Lindau %% Germany %% %% E-mail: daly@linmpi.mpg.de %%-----------------------------------------------------------

% This package reimplements the LaTeX \cite command to be used for various
% citation styles, both author-year and numerical. It accepts BibTeX
% output intended for many other packages, and therefore acts as a
% general, all-purpose citation-style interface.
%
% With standard numerical .bst files, only numerical citations are
% possible. With an author-year .bst file, both numerical and
% author-year citations are possible.
%
% If author-year citations are selected, \bibitem must have one of the
%   following forms:
%   \bibitem[Jones et al.(1990)]{key}...
%   \bibitem[Jones et al.(1990)Jones, Baker, and Williams]{key}...
%   \bibitem[Jones et al., 1990]{key}...
%   \bibitem[\protect\citeauthoryear{Jones, Baker, and Williams}{Jones
%       et al.}{1990}]{key}...
%   \bibitem[\protect\citeauthoryear{Jones et al.}{1990}]{key}...
%   \bibitem[\protect\astroncite{Jones et al.}{1990}]{key}...
%   \bibitem[\protect\citename{Jones et al., }1990]{key}...
%   \harvarditem[Jones et al.]{Jones, Baker, and Williams}{1990}{key}...
%
% This is either to be made up manually, or to be generated by an
% appropriate .bst file with BibTeX.
%                            Author-year mode     ||   Numerical mode
% Then, \citet{key}  ==>>  Jones et al. (1990)    ||   Jones et al. [21]
%       \citep{key}  ==>> (Jones et al., 1990)    ||   [21]
% Multiple citations as normal:
% \citep{key1,key2}  ==>> (Jones et al., 1990; Smith, 1989) || [21,24]
%                           or  (Jones et al., 1990, 1991)  || [21,24]
%                           or  (Jones et al., 1990a,b)     || [21,24]
% \cite{key} is the equivalent of \citet{key} in author-year mode
%                         and  of \citep{key} in numerical mode
% Full author lists may be forced with \citet* or \citep*, e.g.
%       \citep*{key}      ==>> (Jones, Baker, and Williams, 1990)
% Optional notes as:
%   \citep[chap. 2]{key}    ==>> (Jones et al., 1990, chap. 2)
%   \citep[e.g.,][]{key}    ==>> (e.g., Jones et al., 1990)
%   \citep[see][pg. 34]{key}==>> (see Jones et al., 1990, pg. 34)
%  (Note: in standard LaTeX, only one note is allowed, after the ref.
%   Here, one note is like the standard, two make pre- and post-notes.)
%   \citealt{key}          ==>> Jones et al. 1990
%   \citealt*{key}         ==>> Jones, Baker, and Williams 1990
%   \citealp{key}          ==>> Jones et al., 1990
%   \citealp*{key}         ==>> Jones, Baker, and Williams, 1990
% Additional citation possibilities (both author-year and numerical modes)
%   \citeauthor{key}       ==>> Jones et al.
%   \citeauthor*{key}      ==>> Jones, Baker, and Williams
%   \citeyear{key}         ==>> 1990
%   \citeyearpar{key}      ==>> (1990)
%   \citetext{priv. comm.} ==>> (priv. comm.)
% Note: full author lists depends on whether the bib style supports them;
%       if not, the abbreviated list is printed even when full requested.
%
% Defining the citation style of a given bib style:
% Use \bibpunct (in the preamble only) with 6 mandatory arguments:
%    1. opening bracket for citation
%    2. closing bracket
%    3. citation separator (for multiple citations in one \cite)
%    4. the letter n for numerical styles, s for superscripts
%        else anything for author-year
%    5. punctuation between authors and date
%    6. punctuation between years (or numbers) when common authors missing
% One optional argument is the character coming before post-notes. It
%   appears in square braces before all other arguments. May be left off.
% Example (and default) \bibpunct[,]{(}{)}{;}{a}{,}{,}
%
% To make this automatic for a given bib style, named newbib, say, make
% a local configuration file, natbib.cfg, with the definition
%   \newcommand{\bibstyle@newbib}{\bibpunct...}
% Then the \bibliographystyle{newbib} will cause \bibstyle@newbib to
% be called on THE NEXT LATEX RUN (via the aux file).
%
% Such preprogrammed definitions may be invoked in the text (preamble only)
%  by calling \citestyle{newbib}. This is only useful if the style specified
%  differs from that in \bibliographystyle.
%
% With \citeindextrue and \citeindexfalse, one can control whether the
% \cite commands make an automatic entry of the citation in the .idx
% indexing file. For this, \makeindex must also be given in the preamble.
%
% LaTeX2e Options: (for selecting punctuation)
%   round  -  round parentheses are used (default)
%   square -  square brackets are used   [option]
%   curly  -  curly braces are used      {option}
%   angle  -  angle brackets are used    <option>
%   colon  -  multiple citations separated by colon (default)
%   comma  -  separated by comma
%   authoryear - selects author-year citations (default)
%   numbers-  selects numerical citations
%   super  -  numerical citations as superscripts
%   sort   -  sorts multiple citations according to order in ref. list
%   sort&compress   -  like sort, but also compresses numerical citations
%   longnamesfirst  -  makes first citation full author list
%   sectionbib - puts bibliography in a \section* instead of \chapter*
% Punctuation so selected dominates over any predefined ones.
% LaTeX2e options are called as, e.g.
%        \usepackage[square,comma]{natbib}
% LaTeX the source file natbib.dtx to obtain more details
% or the file natnotes.tex for a brief reference sheet.
%-----------------------------------------------------------

\@ifclassloaded{aguplus}{\PackageError{natbib}

 {The aguplus class already includes natbib coding,\MessageBreak
  so you should not add it explicitly}
 {Type <Return> for now, but then later remove\MessageBreak
  the command \protect\usepackage{natbib} from the document}
 \endinput}{}

\@ifclassloaded{nlinproc}{\PackageError{natbib}

 {The nlinproc class already includes natbib coding,\MessageBreak
  so you should not add it explicitly}
 {Type <Return> for now, but then later remove\MessageBreak
  the command \protect\usepackage{natbib} from the document}
 \endinput}{}

\@ifclassloaded{egs}{\PackageError{natbib}

 {The egs class already includes natbib coding,\MessageBreak
  so you should not add it explicitly}
 {Type <Return> for now, but then later remove\MessageBreak
  the command \protect\usepackage{natbib} from the document}
 \endinput}{}
% Define citation punctuation for some author-year styles
% One may add and delete at this point
% Or put additions into local configuration file natbib.cfg

\newcommand\bibstyle@chicago{\bibpunct{(}{)}{;}{a}{,}{,}} \newcommand\bibstyle@named{\bibpunct{[}{]}{;}{a}{,}{,}} \newcommand\bibstyle@agu{\bibpunct{[}{]}{;}{a}{,}{,~}}%Amer. Geophys. Union \newcommand\bibstyle@egs{\bibpunct{(}{)}{;}{a}{,}{,}}%Eur. Geophys. Soc. \newcommand\bibstyle@agsm{\bibpunct{(}{)}{,}{a}{}{,}\gdef\harvardand{\&}} \newcommand\bibstyle@kluwer{\bibpunct{(}{)}{,}{a}{}{,}\gdef\harvardand{\&}} \newcommand\bibstyle@dcu{\bibpunct{(}{)}{;}{a}{;}{,}\gdef\harvardand{and}} \newcommand\bibstyle@aa{\bibpunct{(}{)}{;}{a}{}{,}} %Astronomy & Astrophysics \newcommand\bibstyle@pass{\bibpunct{(}{)}{;}{a}{,}{,}}%Planet. & Space Sci \newcommand\bibstyle@anngeo{\bibpunct{(}{)}{;}{a}{,}{,}}%Annales Geophysicae \newcommand\bibstyle@nlinproc{\bibpunct{(}{)}{;}{a}{,}{,}}%Nonlin.Proc.Geophys.

% Define citation punctuation for some numerical styles

\newcommand\bibstyle@cospar{\bibpunct{/}{/}{,}{n}{}{}%

    \gdef\NAT@biblabelnum##1{##1.}}

\newcommand\bibstyle@esa{\bibpunct{(}{)}{,}{n}{}{}%

    \gdef\NAT@biblabelnum##1{##1.\hspace{1em}}%
    \gdef\NAT@citenum##1##2##3{\NAT@@open \if\relax##2\relax\else
      ##2\ \fi Ref.~##1\if\relax##3\relax\else\NAT@cmt\
      ##3\fi\NAT@@close\endgroup}}

\newcommand\bibstyle@nature{\bibpunct{}{}{,}{s}{}{\textsuperscript{,}}%

    \gdef\NAT@biblabelnum##1{##1.}}
% The standard LaTeX styles

\newcommand\bibstyle@plain{\bibpunct{[}{]}{,}{n}{}{,}} \let\bibstyle@alpha=\bibstyle@plain \let\bibstyle@abbrv=\bibstyle@plain \let\bibstyle@unsrt=\bibstyle@plain

% The author-year modifications of the standard styles

\newcommand\bibstyle@plainnat{\bibpunct{[}{]}{,}{a}{,}{,}} \let\bibstyle@abbrvnat=\bibstyle@plainnat \let\bibstyle@unsrtnat=\bibstyle@plainnat \newif\ifNAT@numbers \NAT@numbersfalse \newif\ifNAT@super \NAT@superfalse \DeclareOption{numbers}{\NAT@numberstrue

  \ExecuteOptions{square,comma,nobibstyle}}

\DeclareOption{super}{\NAT@supertrue\NAT@numberstrue

  \ExecuteOptions{nobibstyle}}

\DeclareOption{authoryear}{\NAT@numbersfalse

  \ExecuteOptions{round,colon,bibstyle}}

\DeclareOption{round}{%

     \renewcommand\NAT@open{(} \renewcommand\NAT@close{)}
  \ExecuteOptions{nobibstyle}}

\DeclareOption{square}{%

     \renewcommand\NAT@open{[} \renewcommand\NAT@close{]}
  \ExecuteOptions{nobibstyle}}

\DeclareOption{angle}{%

     \renewcommand\NAT@open{$<$} \renewcommand\NAT@close{$>$}
  \ExecuteOptions{nobibstyle}}

\DeclareOption{curly}{%

     \renewcommand\NAT@open{\{} \renewcommand\NAT@close{\}}
  \ExecuteOptions{nobibstyle}}

\DeclareOption{comma}{\renewcommand\NAT@sep{,}

  \ExecuteOptions{nobibstyle}}

\DeclareOption{colon}{\renewcommand\NAT@sep{;}

  \ExecuteOptions{nobibstyle}}

\DeclareOption{nobibstyle}{\let\bibstyle=\@gobble} \DeclareOption{bibstyle}{\let\bibstyle=\@citestyle} \newif\ifNAT@openbib \NAT@openbibfalse \DeclareOption{openbib}{\NAT@openbibtrue} \DeclareOption{sectionbib}{\def\NAT@sectionbib{on}} \def\NAT@sort{0} \DeclareOption{sort}{\def\NAT@sort{1}} \DeclareOption{sort&compress}{\def\NAT@sort{2}} \@ifpackageloaded{cite}{\PackageWarningNoLine{natbib}

 {The `cite' package should not be used\MessageBreak
  with natbib. Use option `sort' instead}\ExecuteOptions{sort}}{}

\newif\ifNAT@longnames\NAT@longnamesfalse \DeclareOption{longnamesfirst}{\NAT@longnamestrue} \DeclareOption{nonamebreak}{\def\NAT@nmfmt#1{\mbox{#1}}} \def\NAT@nmfmt#1{{#1}} \renewcommand\bibstyle[1]{\@ifundefined{bibstyle@#1}{\relax}

    {\csname bibstyle@#1\endcsname}}

\AtBeginDocument{\global\let\bibstyle=\@gobble} \let\@citestyle\bibstyle \newcommand\citestyle[1]{\@citestyle{#1}\let\bibstyle\@gobble} \@onlypreamble{\citestyle}\@onlypreamble{\@citestyle} \newcommand\bibpunct[7][,]%

 {\gdef\NAT@open{#2}\gdef\NAT@close{#3}\gdef
  \NAT@sep{#4}\global\NAT@numbersfalse\ifx #5n\global\NAT@numberstrue
  \else
  \ifx #5s\global\NAT@numberstrue\global\NAT@supertrue
  \fi\fi
  \gdef\NAT@aysep{#6}\gdef\NAT@yrsep{#7}%
  \gdef\NAT@cmt{#1}%
  \global\let\bibstyle\@gobble
 }

\@onlypreamble{\bibpunct} \newcommand\NAT@open{(} \newcommand\NAT@close{)} \newcommand\NAT@sep{;} \ProcessOptions \newcommand\NAT@aysep{,} \newcommand\NAT@yrsep{,} \newcommand\NAT@cmt{,} \newcommand\NAT@cite%

   [3]{\ifNAT@swa\NAT@@open\if\relax#2\relax\else#2\ \fi
       #1\if\relax#3\relax\else\NAT@cmt\ #3\fi\NAT@@close\else#1\fi\endgroup}

\newcommand\NAT@citenum%

   [3]{\ifNAT@swa\NAT@@open\if\relax#2\relax\else#2\ \fi
       #1\if\relax#3\relax\else\NAT@cmt\ #3\fi\NAT@@close\else#1\fi\endgroup}

\newcommand\NAT@citesuper[3]{\ifNAT@swa \unskip\hspace{1\p@}\textsuperscript{#1}%

  \if\relax#3\relax\else\ (#3)\fi\else #1\fi\endgroup}

\providecommand

 \textsuperscript[1]{\mbox{$^{\mbox{\scriptsize#1}}$}}

\providecommand\@firstofone[1]{#1} \newcommand\NAT@citexnum{} \def\NAT@citexnum[#1][#2]#3{%

\NAT@sort@cites{#3}%
\let\@citea\@empty
 \@cite{\def\NAT@num{-1}\let\NAT@last@yr\relax\let\NAT@nm\@empty
   \@for\@citeb:=\NAT@cite@list\do
   {\edef\@citeb{\expandafter\@firstofone\@citeb}%
    \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
    \@ifundefined{b@\@citeb\@extra@b@citeb}{%
      {\reset@font\bfseries?}
       \NAT@citeundefined\PackageWarning{natbib}%
      {Citation `\@citeb' on page \thepage \space undefined}}%
    {\let\NAT@last@num\NAT@num\let\NAT@last@nm\NAT@nm
     \NAT@parse{\@citeb}%
     \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%
       \let\NAT@name=\NAT@all@names
       \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%
     \fi
     \ifNAT@full\let\NAT@nm\NAT@all@names\else
       \let\NAT@nm\NAT@name\fi
     \ifNAT@swa
      \ifnum\NAT@ctype=2\relax\@citea
       \hyper@natlinkstart{\@citeb\@extra@b@citeb}%
           \NAT@test{2}\hyper@natlinkend\else
      \ifnum\NAT@sort>1
        \begingroup\catcode`\_=8
           \ifcat _\ifnum\z@<0\NAT@num _\else A\fi
             \global\let\NAT@nm=\NAT@num \else \gdef\NAT@nm{-2}\fi
           \ifcat _\ifnum\z@<0\NAT@last@num _\else A\fi
             \global\@tempcnta=\NAT@last@num \global\advance\@tempcnta by\@ne
             \else \global\@tempcnta\m@ne\fi
        \endgroup
        \ifnum\NAT@nm=\@tempcnta
          \ifx\NAT@last@yr\relax
            \edef\NAT@last@yr{\@citea \mbox{\NAT@num}}%
          \else
            \edef\NAT@last@yr{--\penalty\@m\mbox{\NAT@num}}%
          \fi
        \else
          \NAT@last@yr \@citea \mbox{\NAT@num}%
          \let\NAT@last@yr\relax
        \fi
      \else
        \@citea \mbox{\hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@num
                   \hyper@natlinkend}%
      \fi
      \fi
      \def\@citea{\NAT@sep\penalty\@m\NAT@space}%
     \else
       \ifcase\NAT@ctype\relax
         \ifx\NAT@last@nm\NAT@nm \NAT@yrsep\penalty\@m\NAT@space\else
         \@citea \NAT@test{1}\ \NAT@@open
         \if\relax#1\relax\else#1\ \fi\fi \NAT@mbox{%
         \hyper@natlinkstart{\@citeb\@extra@b@citeb}%
         \NAT@num\hyper@natlinkend}%
         \def\@citea{\NAT@@close\NAT@sep\penalty\@m\ }%
       \or\@citea
         \hyper@natlinkstart{\@citeb\@extra@b@citeb}%
          \NAT@test{1}\hyper@natlinkend
         \def\@citea{\NAT@sep\penalty\@m\ }%
       \or\@citea
         \hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@test{2}%
          \hyper@natlinkend
         \def\@citea{\NAT@sep\penalty\@m\ }%
       \fi
     \fi
     }}%
     \ifnum\NAT@sort>1\NAT@last@yr\fi
     \ifNAT@swa\else\ifnum\NAT@ctype=0\if\relax#2\relax\else
     \NAT@cmt\ #2\fi \NAT@@close\fi\fi}{#1}{#2}}

\newcommand\NAT@test[1]{\ifnum#1=1 \ifx\NAT@nm\NAT@noname

 {\reset@font\bfseries(author?)}\PackageWarning{natbib}
 {Author undefined for citation`\@citeb'
  \MessageBreak
  on page \thepage}\else \NAT@nm \fi
 \else \if\relax\NAT@date\relax
 {\reset@font\bfseries(year?)}\PackageWarning{natbib}
 {Year undefined for citation`\@citeb'
  \MessageBreak
  on page \thepage}\else \NAT@date \fi \fi}

\newcommand\NAT@citex{} \def\NAT@citex%

 [#1][#2]#3{%
 \NAT@sort@cites{#3}%
 \let\@citea\@empty
 \@cite{\let\NAT@nm\@empty\let\NAT@year\@empty
   \@for\@citeb:=\NAT@cite@list\do
   {\edef\@citeb{\expandafter\@firstofone\@citeb}%
    \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
    \@ifundefined{b@\@citeb\@extra@b@citeb}{\@citea%
      {\reset@font\bfseries ?}\NAT@citeundefined
                \PackageWarning{natbib}%
      {Citation `\@citeb' on page \thepage \space undefined}}%
    {\let\NAT@last@nm=\NAT@nm\let\NAT@last@yr=\NAT@year
    \NAT@parse{\@citeb}%
     \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%
       \let\NAT@name=\NAT@all@names
       \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%
     \fi
    \ifNAT@full\let\NAT@nm\NAT@all@names\else
      \let\NAT@nm\NAT@name\fi
    \ifNAT@swa\ifcase\NAT@ctype
      \ifx\NAT@last@nm\NAT@nm\NAT@yrsep
         \ifx\NAT@last@yr\NAT@year
           \hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@exlab
           \hyper@natlinkend
         \else\unskip\
           \hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@date
           \hyper@natlinkend
         \fi
      \else\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@nmfmt{\NAT@nm}%
        \hyper@natlinkbreak{\NAT@aysep\ }{\@citeb\@extra@b@citeb}%
        \NAT@date\hyper@natlinkend
      \fi
    \or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@nmfmt{\NAT@nm}\hyper@natlinkend
    \or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@date\hyper@natlinkend
    \fi \def\@citea{\NAT@sep\ }%
    \else\ifcase\NAT@ctype
      \ifx\NAT@last@nm\NAT@nm\NAT@yrsep
         \ifx\NAT@last@yr\NAT@year
           \hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@exlab
           \hyper@natlinkend
         \else\unskip\
           \hyper@natlinkstart{\@citeb\@extra@b@citeb}\NAT@date
           \hyper@natlinkend
         \fi
      \else\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@nmfmt{\NAT@nm}%
        \hyper@natlinkbreak{\ \NAT@@open\if\relax#1\relax\else#1\ \fi}%
           {\@citeb\@extra@b@citeb}%
        \NAT@date\hyper@natlinkend\fi
      \or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@nmfmt{\NAT@nm}\hyper@natlinkend
      \or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
        \NAT@date\hyper@natlinkend\fi \def\@citea{\NAT@@close\NAT@sep\ }%
    \fi
    }}\ifNAT@swa\else\if\relax#2\relax\else\NAT@cmt\ #2\fi
    \NAT@@close\fi}{#1}{#2}}

\newif\ifNAT@par \NAT@partrue \newcommand\NAT@@open{\ifNAT@par\NAT@open\fi} \newcommand\NAT@@close{\ifNAT@par\NAT@close\fi} \newcommand\shortcites[1]{%

 \@bsphack\@for\@citeb:=#1\do
 {\edef\@citeb{\expandafter\@firstofone\@citeb}%
  \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}\@esphack}

\newcommand\NAT@biblabel[1]{\hfill} \newcommand\NAT@biblabelnum[1]{[#1]} \def\@tempa#1{[#1]} \ifx\@tempa\@biblabel\let\@biblabel\@empty\fi \newcommand\NAT@bibsetnum[1]{\settowidth\labelwidth{\@biblabel{#1}}%

  \setlength{\leftmargin}{\labelwidth}\addtolength{\leftmargin}{\labelsep}%
  \setlength{\itemsep}{\bibsep}\setlength{\parsep}{\z@}%
  \ifNAT@openbib
    \addtolength{\leftmargin}{\bibindent}%
    \setlength{\itemindent}{-\bibindent}%
    \setlength{\listparindent}{\itemindent}%
    \setlength{\parsep}{0pt}%
  \fi

} \newlength{\bibhang} \setlength{\bibhang}{1em} \newlength{\bibsep} {\@listi \global\bibsep\itemsep \global\advance\bibsep by\parsep}

\newcommand\NAT@bibsetup%

  [1]{\setlength{\leftmargin}{\bibhang}\setlength{\itemindent}{-\leftmargin}%
      \setlength{\itemsep}{\bibsep}\setlength{\parsep}{\z@}}

\newcommand\NAT@set@cites{\ifNAT@numbers

 \ifNAT@super \let\@cite\NAT@citesuper
    \def\NAT@mbox##1{\unskip\nobreak\hspace{1\p@}\textsuperscript{##1}}%
    \let\citeyearpar=\citeyear
    \let\NAT@space\relax\else
    \let\NAT@mbox=\mbox
    \let\@cite\NAT@citenum \def\NAT@space{ }\fi
 \let\@citex\NAT@citexnum
 \ifx\@biblabel\@empty\let\@biblabel\NAT@biblabelnum\fi
 \let\@bibsetup\NAT@bibsetnum
 \def\natexlab##1{}%
\else
 \let\@cite\NAT@cite
 \let\@citex\NAT@citex
 \let\@biblabel\NAT@biblabel
 \let\@bibsetup\NAT@bibsetup
 \def\natexlab##1{##1}%
\fi}

\AtBeginDocument{\NAT@set@cites} \AtBeginDocument{\ifx\SK@def\@undefined\else \ifx\SK@cite\@empty\else

 \SK@def\@citex[#1][#2]#3{\SK@\SK@@ref{#3}\SK@@citex[#1][#2]{#3}}\fi

\ifx\SK@citeauthor\@undefined\def\HAR@checkdef{}\else

 \let\citeauthor\SK@citeauthor
 \let\citefullauthor\SK@citefullauthor
 \let\citeyear\SK@citeyear\fi

\fi} \AtBeginDocument{\@ifpackageloaded{hyperref}{%

 \ifnum\NAT@sort=2\def\NAT@sort{1}\fi}{}}

\newif\ifNAT@full\NAT@fullfalse \newif\ifNAT@swa \DeclareRobustCommand\citet

  {\begingroup\NAT@swafalse\def\NAT@ctype{0}\NAT@partrue
    \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}

\newcommand\NAT@citetp{\@ifnextchar[{\NAT@@citetp}{\NAT@@citetp[]}} \newcommand\NAT@@citetp{} \def\NAT@@citetp[#1]{\@ifnextchar[{\@citex[#1]}{\@citex[][#1]}} \DeclareRobustCommand\citep

  {\begingroup\NAT@swatrue\def\NAT@ctype{0}\NAT@partrue
        \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}

\DeclareRobustCommand\cite

   {\begingroup\def\NAT@ctype{0}\NAT@partrue\NAT@swatrue
     \@ifstar{\NAT@fulltrue\NAT@cites}{\NAT@fullfalse\NAT@cites}}

\newcommand\NAT@cites{\@ifnextchar [{\NAT@@citetp}{%

    \ifNAT@numbers\else
    \NAT@swafalse
    \fi
   \NAT@@citetp[]}}

\DeclareRobustCommand\citealt

  {\begingroup\NAT@swafalse\def\NAT@ctype{0}\NAT@parfalse
        \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}

\DeclareRobustCommand\citealp

  {\begingroup\NAT@swatrue\def\NAT@ctype{0}\NAT@parfalse
        \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}

\DeclareRobustCommand\citeauthor

  {\begingroup\NAT@swafalse\def\NAT@ctype{1}\NAT@parfalse
   \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}

\DeclareRobustCommand\citeyear

  {\begingroup\NAT@swafalse\def\NAT@ctype{2}\NAT@parfalse\NAT@citetp}

\DeclareRobustCommand\citeyearpar

  {\begingroup\NAT@swatrue\def\NAT@ctype{2}\NAT@partrue\NAT@citetp}

\newcommand\citetext[1]{\NAT@open#1\NAT@close} \DeclareRobustCommand\citefullauthor

  {\citeauthor*}

\renewcommand\nocite[1]{\@bsphack

 \@for\@citeb:=#1\do{%
   \edef\@citeb{\expandafter\@firstofone\@citeb}%
   \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
   \if*\@citeb\else
   \@ifundefined{b@\@citeb\@extra@b@citeb}{%
      \NAT@citeundefined \PackageWarning{natbib}%
      {Citation `\@citeb' undefined}}{}\fi}%
 \@esphack}

\newcommand\NAT@parse[1]{{%

    \let\protect=\@unexpandable@protect\let~\relax
    \let\active@prefix=\@gobble
    \xdef\NAT@temp{\csname b@#1\@extra@b@citeb\endcsname}}%
    \expandafter\NAT@split\NAT@temp
    \expandafter\NAT@parse@date\NAT@date??????@@%
    \ifciteindex\NAT@index\fi

} \newcommand\NAT@split[4]{%

 \gdef\NAT@num{#1}\gdef\NAT@name{#3}\gdef\NAT@date{#2}%
 \gdef\NAT@all@names{#4}%
 \ifx\NAT@noname\NAT@all@names \gdef\NAT@all@names{#3}\fi}

\newcommand\NAT@parse@date{} \def\NAT@parse@date#1#2#3#4#5#6@@{%

 \ifnum\the\catcode`#1=11\def\NAT@year{}\def\NAT@exlab{#1}\else
 \ifnum\the\catcode`#2=11\def\NAT@year{#1}\def\NAT@exlab{#2}\else
 \ifnum\the\catcode`#3=11\def\NAT@year{#1#2}\def\NAT@exlab{#3}\else
 \ifnum\the\catcode`#4=11\def\NAT@year{#1#2#3}\def\NAT@exlab{#4}\else
   \def\NAT@year{#1#2#3#4}\def\NAT@exlab{{#5}}\fi\fi\fi\fi}

\newcommand\NAT@index{} \let\NAT@makeindex=\makeindex \renewcommand\makeindex{\NAT@makeindex

 \renewcommand\NAT@index{\@bsphack\begingroup
    \def~{\string~}\@wrindex{\NAT@idxtxt}}}

\newcommand\NAT@idxtxt{\NAT@name\ \NAT@open\NAT@date\NAT@close} \newif\ifciteindex \citeindexfalse \newcommand\citeindextype{default} \newcommand\NAT@index@alt{{\let\protect=\noexpand\let~\relax

 \xdef\NAT@temp{\NAT@idxtxt}}\expandafter\NAT@exp\NAT@temp\@nil}

\newcommand\NAT@exp{} \def\NAT@exp#1\@nil{\index[\citeindextype]{#1}}

\AtBeginDocument{% \@ifpackageloaded{index}{\let\NAT@index=\NAT@index@alt}{}} \newcommand\NAT@ifcmd{\futurelet\NAT@temp\NAT@ifxcmd} \newcommand\NAT@ifxcmd{\ifx\NAT@temp\relax\else\expandafter\NAT@bare\fi} \def\NAT@bare#1(#2)#3()#4\@nil#5{%

 \if\relax#2\relax
 \expandafter\NAT@apalk#1, , \@nil{#5}\else
 \stepcounter{NAT@ctr}%
 \NAT@wrout{\arabic {NAT@ctr}}{#2}{#1}{#3}{#5}

\fi } \newcommand\NAT@wrout[5]{% \if@filesw

     {\let\protect\noexpand\let~\relax
      \immediate
      \write\@auxout{\string\bibcite{#5}{{#1}{#2}{{#3}}{{#4}}}}}\fi

\ignorespaces} \def\NAT@noname{{}} \renewcommand\bibitem{%

 \@ifnextchar[{\@lbibitem}{%
   \global\NAT@stdbsttrue
   \stepcounter{NAT@ctr}\@lbibitem[\arabic{NAT@ctr}]}}

\def\@lbibitem[#1]#2{%

 \if\relax\@extra@b@citeb\relax\else
   \@ifundefined{br@#2\@extra@b@citeb}{}{%
    \@namedef{br@#2}{\@nameuse{br@#2\@extra@b@citeb}}}\fi
  \@ifundefined{b@#2\@extra@b@citeb}{\def\NAT@num{}}{\NAT@parse{#2}}%
  \item[\hfil\hyper@natanchorstart{#2\@extra@b@citeb}\@biblabel{\NAT@num}%
   \hyper@natanchorend]%
   \NAT@ifcmd#1()()\@nil{#2}}

\ifx\SK@lbibitem\@undefined\else

  \let\SK@lbibitem\@lbibitem
  \def\@lbibitem[#1]#2{%
    \SK@lbibitem[#1]{#2}\SK@\SK@@label{#2}\ignorespaces}\fi

\newif\ifNAT@stdbst \NAT@stdbstfalse

\AtEndDocument

 {\ifNAT@stdbst\if@filesw\immediate\write\@auxout{\string
  \global\string\NAT@numberstrue}\fi\fi
 }

\providecommand\bibcite{} \renewcommand\bibcite[2]{\@ifundefined{b@#1\@extra@binfo}\relax

    {\NAT@citemultiple
     \PackageWarningNoLine{natbib}{Citation `#1' multiply defined}}%
 \global\@namedef{b@#1\@extra@binfo}{#2}}

\AtEndDocument{\NAT@swatrue\renewcommand\bibcite[2]%

                        {\NAT@testdef{#1}{#2}}}

\newcommand\NAT@testdef[2]{%

 \def\NAT@temp{#2}\expandafter \ifx \csname b@#1\@extra@binfo\endcsname
   \NAT@temp \else \ifNAT@swa \NAT@swafalse
      \PackageWarningNoLine{natbib}{Citation(s) may have
         changed.\MessageBreak
         Rerun to get citations correct}\fi\fi}

\newcommand\NAT@apalk{} \def\NAT@apalk#1, #2, #3\@nil#4{\if\relax#2\relax

 \global\NAT@stdbsttrue
 \NAT@wrout{#1}{}{}{}{#4}\else
 \stepcounter{NAT@ctr}%
 \NAT@wrout{\arabic {NAT@ctr}}{#2}{#1}{}{#4}\fi}

\newcommand\citeauthoryear{} \def\citeauthoryear#1#2#3()()\@nil#4{\stepcounter{NAT@ctr}\if\relax#3\relax

  \NAT@wrout{\arabic {NAT@ctr}}{#2}{#1}{}{#4}\else
  \NAT@wrout{\arabic {NAT@ctr}}{#3}{#2}{#1}{#4}\fi}

\newcommand\citestarts{\NAT@open} \newcommand\citeends{\NAT@close} \newcommand\betweenauthors{and} \newcommand\astroncite{} \def\astroncite#1#2()()\@nil#3{\stepcounter{NAT@ctr}\NAT@wrout{\arabic {NAT@ctr}}{#2}{#1}{}{#3}} \newcommand\citename{} \def\citename#1#2()()\@nil#3{\expandafter\NAT@apalk#1#2, \@nil{#3}} \newcommand\harvarditem[4][]%

   {\if\relax#1\relax\bibitem[#2(#3)]{#4}\else
       \bibitem[#1(#3)#2]{#4}\fi }

\newcommand\harvardleft{\NAT@open} \newcommand\harvardright{\NAT@close} \newcommand\harvardyearleft{\NAT@open} \newcommand\harvardyearright{\NAT@close} \AtBeginDocument{\providecommand{\harvardand}{and}} \newcommand\harvardurl[1]{\textbf{URL:} \textit{#1}} \providecommand\bibsection{} \@ifundefined{chapter}%

 {\renewcommand\bibsection{\section*{\refname
   \@mkboth{\MakeUppercase{\refname}}{\MakeUppercase{\refname}}}}}
 {\@ifundefined{NAT@sectionbib}%
   {\renewcommand\bibsection{\chapter*{\bibname
    \@mkboth{\MakeUppercase{\bibname}}{\MakeUppercase{\bibname}}}}}
   {\renewcommand\bibsection{\section*{\bibname
    \ifx\@mkboth\@gobbletwo\else\markright{\MakeUppercase{\bibname}}\fi}}}}

\@ifclassloaded{amsart}%

 {\renewcommand\bibsection{\section*{\refname}}{}}{}

\@ifclassloaded{amsbook}%

 {\renewcommand\bibsection{\section*{\bibname}}{}}{}

\@ifundefined{bib@heading}{}{\let\bibsection\bib@heading} \newcounter{NAT@ctr} \renewenvironment{thebibliography}[1]{%

\bibfont\bibsection\parindent \z@\list
  {\@biblabel{\arabic{NAT@ctr}}}{\@bibsetup{#1}%
   \setcounter{NAT@ctr}{0}}%
   \ifNAT@openbib
     \renewcommand\newblock{\par}
   \else
     \renewcommand\newblock{\hskip .11em \@plus.33em \@minus.07em}%
   \fi
   \sloppy\clubpenalty4000\widowpenalty4000
   \sfcode`\.=1000\relax
   \let\citeN\cite \let\shortcite\cite
   \let\citeasnoun\cite
}{\def\@noitemerr{%
 \PackageWarning{natbib}
    {Empty `thebibliography' environment}}%
 \endlist\vskip-\lastskip}

\let\bibfont=\relax \providecommand\reset@font{\relax} \providecommand\bibname{Bibliography} \providecommand\refname{References} \newcommand\NAT@citeundefined{\gdef \NAT@undefined {%

   \PackageWarningNoLine{natbib}{There were undefined citations}}}

\let \NAT@undefined \relax \newcommand\NAT@citemultiple{\gdef \NAT@multiple {%

   \PackageWarningNoLine{natbib}{There were multiply defined citations}}}

\let \NAT@multiple \relax \AtEndDocument{\NAT@undefined\NAT@multiple} \providecommand\@mkboth[2]{} \providecommand\MakeUppercase{\uppercase} \providecommand{\@extra@b@citeb}{} \gdef\@extra@binfo{} \providecommand\hyper@natanchorstart[1]{} \providecommand\hyper@natanchorend{} \providecommand\hyper@natlinkstart[1]{} \providecommand\hyper@natlinkend{} \providecommand\hyper@natlinkbreak[2]{#1} \@ifpackageloaded{babel}{\PackageWarningNoLine{natbib}{% If you use both babel and natbib\MessageBreak then load babel AFTER natbib}}{} \AtBeginDocument{\@ifpackageloaded{babel}{% \bbl@redefine\@citex[#1][#2]#3{%

 \@safe@activestrue\org@@citex[#1][#2]{#3}\@safe@activesfalse}%

}{}} \ifnum\NAT@sort>0 \newcommand\NAT@sort@cites[1]{% \@tempcntb\m@ne \let\@celt\delimiter \def\NAT@num@list{}% \def\NAT@cite@list{}% \def\NAT@nonsort@list{}% \@for \@citeb:=#1\do{\NAT@make@cite@list}% \edef\NAT@cite@list{\NAT@cite@list\NAT@nonsort@list}% \edef\NAT@cite@list{\expandafter\NAT@xcom\NAT@cite@list @@}} \begingroup \catcode`\_=8 \gdef\NAT@make@cite@list{%

    \edef\@citeb{\expandafter\@firstofone\@citeb}%
   \@ifundefined{b@\@citeb\@extra@b@citeb}{\def\NAT@num{A}}%
   {\NAT@parse{\@citeb}}%
     \ifcat _\ifnum\z@<0\NAT@num _\else A\fi
      \@tempcnta\NAT@num \relax
      \ifnum \@tempcnta>\@tempcntb
         \edef\NAT@num@list{\NAT@num@list \@celt{\NAT@num}}%
         \edef\NAT@cite@list{\NAT@cite@list\@citeb,}%
         \@tempcntb\@tempcnta
      \else
         \let\NAT@@cite@list=\NAT@cite@list \def\NAT@cite@list{}%
         \edef\NAT@num@list{\expandafter\NAT@num@celt \NAT@num@list \@gobble @}%
         {\let\@celt=\NAT@celt\NAT@num@list}%
      \fi
   \else
      \edef\NAT@nonsort@list{\NAT@nonsort@list\@citeb,}%
\fi}

\endgroup \def\NAT@celt#1{\ifnum #1<\@tempcnta

 \xdef\NAT@cite@list{\NAT@cite@list\expandafter\NAT@nextc\NAT@@cite@list @@}%
 \xdef\NAT@@cite@list{\expandafter\NAT@restc\NAT@@cite@list}%
\else
 \xdef\NAT@cite@list{\NAT@cite@list\@citeb,\NAT@@cite@list}\let\@celt\@gobble%
\fi}

\def\NAT@num@celt#1#2{\ifx \@celt #1%

    \ifnum #2<\@tempcnta
       \@celt{#2}%
       \expandafter\expandafter\expandafter\NAT@num@celt
    \else
       \@celt{\number\@tempcnta}\@celt{#2}%
 \fi\fi}

\def\NAT@nextc#1,#2@@{#1,} \def\NAT@restc#1,#2{#2} \def\NAT@xcom#1,@@{#1} \else

\newcommand\NAT@sort@cites[1]{\edef\NAT@cite@list{#1}}\fi

\InputIfFileExists{natbib.cfg}

      {\typeout{Local config file natbib.cfg used}}{}

%% %% <<<<< End of decommented file <<<<<< %% %% End of file `natbib.sty'.

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