natbib.sty
%%
%% This is file `natbib.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% natbib.dtx (with options: `package,all')
%% =============================================
%% IMPORTANT NOTICE:
%%
%% This program can be redistributed and/or modified under the terms
%% of the LaTeX Project Public License Distributed from CTAN
%% archives in directory macros/latex/base/lppl.txt; either
%% version 1 of the License, or any later version.
%%
%% This is a generated file.
%% It may not be distributed without the original source file natbib.dtx.
%%
%% Full documentation can be obtained by LaTeXing that original file.
%% Only a few abbreviated comments remain here to describe the usage.
%% =============================================
%% Copyright 1993-2007 Patrick W Daly
%% Max-Planck-Institut f\"ur Sonnensystemforschung
%% Max-Planck-Str. 2
%% D-37191 Katlenburg-Lindau
%% Germany
%% E-mail: daly@mps.mpg.de
\NeedsTeXFormat{LaTeX2e}[1995/06/01]
\ProvidesPackage{natbib}
[2007/10/30 8.1 (PWD)]
% 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.)
% \citenum{key} ==>> 11 [non-superscripted]
% Note: full author lists depends on whether the bib style supports them;
% if not, the abbreviated list is printed even when full requested.
%
% For names like della Robbia at the start of a sentence, use
% \Citet{dRob98} ==>> Della Robbia (1998)
% \Citep{dRob98} ==>> (Della Robbia, 1998)
% \Citeauthor{dRob98} ==>> Della Robbia
%
%
% Citation aliasing is achieved with
% \defcitealias{key}{text}
% \citetalias{key} ==>> text
% \citepalias{key} ==>> (text)
%
% Defining the citation mode and punctual (citation style)
% \setcitestyle{<comma-separated list of keywords, same
% as the package options>}
% Example: \setcitestyle{square,semicolon}
% Alternatively:
% Use \bibpunct 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 anywhere in the text
% 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.
%
% Package 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>
% semicolon - multiple citations separated by semi-colon (default)
% colon - same as semicolon, an earlier confusion
% 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
% compress - compresses without sorting
% longnamesfirst - makes first citation full author list
% sectionbib - puts bibliography in a \section* instead of \chapter*
% Punctuation so selected dominates over any predefined ones.
% Package 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{agu2001}{\PackageError{natbib}
{The agu2001 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{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}{}
\@ifclassloaded{egu}{\PackageError{natbib}
{The egu 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@copernicus{\bibpunct{(}{)}{;}{a}{,}{,}}%Copernicus Publications
\let\bibstyle@egu=\bibstyle@copernicus
\let\bibstyle@egs=\bibstyle@copernicus
\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\bibnumfmt##1{##1.}}
\newcommand\bibstyle@esa{\bibpunct{(Ref.~}{)}{,}{n}{}{}%
\gdef\bibnumfmt##1{##1.\hspace{1em}}}
\newcommand\bibstyle@nature{\bibpunct{}{}{,}{s}{}{\textsuperscript{,}}%
\gdef\bibnumfmt##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
\renewcommand\NAT@open{}\renewcommand\NAT@close{}
\ExecuteOptions{nobibstyle}}
\DeclareOption{authoryear}{\NAT@numbersfalse
\ExecuteOptions{round,semicolon,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{semicolon}{\renewcommand\NAT@sep{;}
\ExecuteOptions{nobibstyle}}
\DeclareOption{colon}{\ExecuteOptions{semicolon}}
\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}
\def\NAT@cmprs{0}
\DeclareOption{sort}{\def\NAT@sort{1}}
\DeclareOption{compress}{\def\NAT@cmprs{1}}
\DeclareOption{sort&compress}{\def\NAT@sort{1}\def\NAT@cmprs{1}}
\@ifpackageloaded{cite}{\PackageWarningNoLine{natbib}
{The `cite' package should not be used\MessageBreak
with natbib. Use option `sort' instead}\ExecuteOptions{sort}}{}
\@ifpackageloaded{citeref}{\PackageError{natbib}
{The `citeref' package must be loaded after natbib}%
{Move \protect\usepackage{citeref} to after \string\usepackage{natbib}}}{}
\newif\ifNAT@longnames\NAT@longnamesfalse
\DeclareOption{longnamesfirst}{\NAT@longnamestrue}
\DeclareOption{nonamebreak}{\def\NAT@nmfmt#1{\mbox{\NAT@up#1}}}
\def\NAT@nmfmt#1{{\NAT@up#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}
\newcommand\bibpunct[7][, ]%
{\gdef\NAT@open{#2}\gdef\NAT@close{#3}\gdef
\NAT@sep{#4}\global\NAT@numbersfalse
\ifx #5n\global\NAT@numberstrue\global\NAT@superfalse
\else
\ifx #5s\global\NAT@numberstrue\global\NAT@supertrue
\fi\fi
\gdef\NAT@aysep{#6}\gdef\NAT@yrsep{#7}%
\gdef\NAT@cmt{#1}%
\NAT@@setcites
}
\newcommand\setcitestyle[1]{
\@for\@tempa:=#1\do
{\def\@tempb{round}\ifx\@tempa\@tempb
\renewcommand\NAT@open{(}\renewcommand\NAT@close{)}\fi
\def\@tempb{square}\ifx\@tempa\@tempb
\renewcommand\NAT@open{[}\renewcommand\NAT@close{]}\fi
\def\@tempb{angle}\ifx\@tempa\@tempb
\renewcommand\NAT@open{$<$}\renewcommand\NAT@close{$>$}\fi
\def\@tempb{curly}\ifx\@tempa\@tempb
\renewcommand\NAT@open{\{}\renewcommand\NAT@close{\}}\fi
\def\@tempb{semicolon}\ifx\@tempa\@tempb
\renewcommand\NAT@sep{;}\fi
\def\@tempb{colon}\ifx\@tempa\@tempb
\renewcommand\NAT@sep{;}\fi
\def\@tempb{comma}\ifx\@tempa\@tempb
\renewcommand\NAT@sep{,}\fi
\def\@tempb{authoryear}\ifx\@tempa\@tempb
\NAT@numbersfalse\fi
\def\@tempb{numbers}\ifx\@tempa\@tempb
\NAT@numberstrue\NAT@superfalse\fi
\def\@tempb{super}\ifx\@tempa\@tempb
\NAT@numberstrue\NAT@supertrue\fi
\expandafter\NAT@find@eq\@tempa=\relax\@nil
\if\@tempc\relax\else
\expandafter\NAT@rem@eq\@tempc
\def\@tempb{open}\ifx\@tempa\@tempb
\xdef\NAT@open{\@tempc}\fi
\def\@tempb{close}\ifx\@tempa\@tempb
\xdef\NAT@close{\@tempc}\fi
\def\@tempb{aysep}\ifx\@tempa\@tempb
\xdef\NAT@aysep{\@tempc}\fi
\def\@tempb{yysep}\ifx\@tempa\@tempb
\xdef\NAT@yrsep{\@tempc}\fi
\def\@tempb{notesep}\ifx\@tempa\@tempb
\xdef\NAT@cmt{\@tempc}\fi
\def\@tempb{citesep}\ifx\@tempa\@tempb
\xdef\NAT@sep{\@tempc}\fi
\fi
}%
\NAT@@setcites
}
\def\NAT@find@eq#1=#2\@nil{\def\@tempa{#1}\def\@tempc{#2}}
\def\NAT@rem@eq#1={\def\@tempc{#1}}
\def\NAT@@setcites{\global\let\bibstyle\@gobble}
\AtBeginDocument{\let\NAT@@setcites\NAT@set@cites}
\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*#2*\else#2\ \fi
#1\if*#3*\else\NAT@cmt#3\fi\NAT@@close\else#1\fi\endgroup}
\newcommand\NAT@citenum%
[3]{\ifNAT@swa\NAT@@open\if*#2*\else#2\ \fi
#1\if*#3*\else\NAT@cmt#3\fi\NAT@@close\else#1\fi\endgroup}
\newcommand\NAT@citesuper[3]{\ifNAT@swa
\if*#2*\else#2\ \fi
\unskip\kern\p@\textsuperscript{\NAT@@open#1\NAT@@close}%
\if*#3*\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
\ifNAT@swa\else
\ifnum\NAT@ctype=0\if*#1*\else
#1\ \fi\fi\fi
\@for\@citeb:=\NAT@cite@list\do
{\edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
\if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}%
\@ifundefined{@cprwrite}{}{\expandafter\@cprwrite\@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>1\relax\@citea
\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\ifnum\NAT@ctype=2\relax\NAT@test{\NAT@ctype}%
\else\NAT@alias
\fi\hyper@natlinkend\else
\ifnum\NAT@cmprs>0
\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
\protected@edef\NAT@last@yr{\@citea \mbox{%
\noexpand\hyper@natlinkstart{\@citeb\@extra@b@citeb}{%
\noexpand\citenumfont{\NAT@num}}\noexpand\hyper@natlinkend}}%
\else
\protected@edef\NAT@last@yr{--\penalty\@m\mbox{%
\noexpand\hyper@natlinkstart{\@citeb\@extra@b@citeb}{%
\noexpand\citenumfont{\NAT@num}}\noexpand\hyper@natlinkend}}%
\fi
\else
\NAT@last@yr \@citea \mbox{\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
{\citenumfont{\NAT@num}}\hyper@natlinkend}%
\let\NAT@last@yr\relax
\fi
\else
\@citea \mbox{\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
{\citenumfont{\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@mbox{\NAT@@open}%
\fi \NAT@mbox{%
\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
{\citenumfont{\NAT@num}}\hyper@natlinkend}%
\def\@citea{\NAT@mbox{\NAT@@close\NAT@sep\penalty\@m\ }}%
\or\@citea
\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@test{\NAT@ctype}\hyper@natlinkend
\def\@citea{\NAT@sep\penalty\@m\ }%
\or\@citea
\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@test{\NAT@ctype}\hyper@natlinkend
\def\@citea{\NAT@sep\penalty\@m\ }%
\or\@citea
\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@alias\hyper@natlinkend
\def\@citea{\NAT@sep\penalty\@m\ }%
\fi
\fi
}}%
\ifnum\NAT@cmprs>0\relax\NAT@last@yr\fi
\ifNAT@swa\else\NAT@mbox{\NAT@@close}%
\ifnum\NAT@ctype=0\if*#2*\else
\NAT@cmt#2\fi
\fi\fi}{#1}{#2}}
\newcommand\NAT@test[1]{\ifnum#1=1 \ifx\NAT@nmfmt{\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}
\let\citenumfont=\relax
\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\@empty}%
\if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}%
\@ifundefined{@cprwrite}{}{\expandafter\@cprwrite\@citeb=}\fi
\@ifundefined{b@\@citeb\@extra@b@citeb}{\@citea%
{\reset@font\bfseries ?}\NAT@citeundefined
\PackageWarning{natbib}%
{Citation `\@citeb' on page \thepage \space undefined}\def\NAT@date{}}%
{\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
\if\relax\NAT@date\relax
\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@nmfmt{\NAT@nm}\NAT@date\hyper@natlinkend
\else
\ifx\NAT@last@nm\NAT@nm\NAT@yrsep
\ifx\NAT@last@yr\NAT@year
\def\NAT@temp{{?}}%
\ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%
{Multiple citation on page \thepage: same authors and
year\MessageBreak without distinguishing extra
letter,\MessageBreak appears as question mark}\fi
\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
\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
\or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@alias\hyper@natlinkend
\fi \def\@citea{\NAT@sep\ }%
\else\ifcase\NAT@ctype
\if\relax\NAT@date\relax
\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@nmfmt{\NAT@nm}\hyper@natlinkend
\else
\ifx\NAT@last@nm\NAT@nm\NAT@yrsep
\ifx\NAT@last@yr\NAT@year
\def\NAT@temp{{?}}%
\ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%
{Multiple citation on page \thepage: same authors and
year\MessageBreak without distinguishing extra
letter,\MessageBreak appears as question mark}\fi
\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*#1*\else#1\ \fi}%
{\@citeb\@extra@b@citeb}%
\NAT@date\hyper@natlinkend\fi
\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
\or\@citea\hyper@natlinkstart{\@citeb\@extra@b@citeb}%
\NAT@alias\hyper@natlinkend
\fi \if\relax\NAT@date\relax\def\@citea{\NAT@sep\ }%
\else\def\@citea{\NAT@@close\NAT@sep\ }\fi
\fi
}}\ifNAT@swa\else\if*#2*\else\NAT@cmt#2\fi
\if\relax\NAT@date\relax\else\NAT@@close\fi\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\NAT@alias{\@ifundefined{al@\@citeb\@extra@b@citeb}{%
{\reset@font\bfseries(alias?)}\PackageWarning{natbib}
{Alias undefined for citation `\@citeb'
\MessageBreak on page \thepage}}{\@nameuse{al@\@citeb\@extra@b@citeb}}}
\let\NAT@up\relax
\newcommand\NAT@Up[1]{{\let\protect\@unexpandable@protect\let~\relax
\expandafter\NAT@deftemp#1}\expandafter\NAT@UP\NAT@temp}
\newcommand\NAT@deftemp[1]{\xdef\NAT@temp{#1}}
\newcommand\NAT@UP[1]{\let\@tempa\NAT@UP\ifcat a#1\MakeUppercase{#1}%
\let\@tempa\relax\else#1\fi\@tempa}
\newcommand\shortcites[1]{%
\@bsphack\@for\@citeb:=#1\do
{\edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
\global\@namedef{bv@\@citeb\@extra@b@citeb}{}}\@esphack}
\newcommand\NAT@biblabel[1]{\hfill}
\newcommand\NAT@biblabelnum[1]{\bibnumfmt{#1}}
\let\bibnumfmt\@empty
\providecommand\@biblabel[1]{[#1]}
\AtBeginDocument{\ifx\bibnumfmt\@empty\let\bibnumfmt\@biblabel\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
\let\@biblabel\NAT@biblabelnum
\let\@bibsetup\NAT@bibsetnum
\renewcommand\NAT@idxtxt{\NAT@name\ \NAT@open\NAT@num\NAT@close}%
\def\natexlab##1{}%
\else
\let\@cite\NAT@cite
\let\@citex\NAT@citex
\let\@biblabel\NAT@biblabel
\let\@bibsetup\NAT@bibsetup
\let\NAT@space\relax
\renewcommand\NAT@idxtxt{\NAT@name\ \NAT@open\NAT@date\NAT@close}%
\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}
\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\citenum
{\begingroup\NAT@swatrue\def\NAT@ctype{0}\NAT@parfalse\let\textsuperscript\
\NAT@citexnum[][]}
\DeclareRobustCommand\citeauthor
{\begingroup\NAT@swafalse\def\NAT@ctype{1}\NAT@parfalse
\@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}
\DeclareRobustCommand\Citet
{\begingroup\NAT@swafalse\def\NAT@ctype{0}\NAT@partrue
\let\NAT@up\NAT@Up
\@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}
\DeclareRobustCommand\Citep
{\begingroup\NAT@swatrue\def\NAT@ctype{0}\NAT@partrue
\let\NAT@up\NAT@Up
\@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}
\DeclareRobustCommand\Citealt
{\begingroup\NAT@swafalse\def\NAT@ctype{0}\NAT@parfalse
\let\NAT@up\NAT@Up
\@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}
\DeclareRobustCommand\Citealp
{\begingroup\NAT@swatrue\def\NAT@ctype{0}\NAT@parfalse
\let\NAT@up\NAT@Up
\@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}
\DeclareRobustCommand\Citeauthor
{\begingroup\NAT@swafalse\def\NAT@ctype{1}\NAT@parfalse
\let\NAT@up\NAT@Up
\@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*}
\newcommand\defcitealias[2]{%
\@ifundefined{al@#1\@extra@b@citeb}{}
{\PackageWarning{natbib}{Overwriting existing alias for citation #1}}
\@namedef{al@#1\@extra@b@citeb}{#2}}
\DeclareRobustCommand\citetalias{\begingroup
\NAT@swafalse\def\NAT@ctype{3}\NAT@parfalse\NAT@citetp}
\DeclareRobustCommand\citepalias{\begingroup
\NAT@swatrue\def\NAT@ctype{3}\NAT@partrue\NAT@citetp}
\renewcommand\nocite[1]{\@bsphack
\@for\@citeb:=#1\do{%
\edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
\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}
\@ifundefined{@indexfile}{}{\let\NAT@makeindex\relax\makeindex}
\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{\mbox{}\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 @#2
\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\let\bibcite\NAT@testdef}
\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{\chapter*{\bibname}}}{}
\@ifundefined{bib@heading}{}{\let\bibsection\bib@heading}
\newcounter{NAT@ctr}
\renewenvironment{thebibliography}[1]{%
\bibsection\parindent \z@\bibpreamble\bibfont\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
\let\bibpreamble\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}
\@ifundefined{bbl@redefine}{}{%
\bbl@redefine\nocite#1{%
\@safe@activestrue\org@nocite{#1}\@safe@activesfalse}%
\bbl@redefine\@lbibitem[#1]#2{%
\@safe@activestrue\org@@lbibitem[#1]{#2}\@safe@activesfalse}%
}
\AtBeginDocument{\@ifundefined{bbl@redefine}{}{%
\bbl@redefine\@citex[#1][#2]#3{%
\@safe@activestrue\org@@citex[#1][#2]{#3}\@safe@activesfalse}%
\bbl@redefine\NAT@testdef#1#2{%
\@safe@activestrue\org@NAT@testdef{#1}{#2}\@safe@activesfalse}%
\@ifundefined{org@@lbibitem}{%
\bbl@redefine\@lbibitem[#1]#2{%
\@safe@activestrue\org@@lbibitem[#1]{#2}\@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}%
\protected@edef\NAT@cite@list{\NAT@cite@list\NAT@nonsort@list}%
\protected@edef\NAT@cite@list{\expandafter\NAT@xcom\NAT@cite@list @@}}
\begingroup \catcode`\_=8
\gdef\NAT@make@cite@list{%
\edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
\@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
\protected@edef\NAT@num@list{\NAT@num@list \@celt{\NAT@num}}%
\protected@edef\NAT@cite@list{\NAT@cite@list\@citeb,}%
\@tempcntb\@tempcnta
\else
\let\NAT@@cite@list=\NAT@cite@list \def\NAT@cite@list{}%
\protected@edef\NAT@num@list{\expandafter\NAT@num@celt \NAT@num@list \@gobble @}%
{\let\@celt=\NAT@celt\NAT@num@list}%
\fi
\else
\protected@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]{\protected@edef\NAT@cite@list{#1}}\fi
\InputIfFileExists{natbib.cfg}
{\typeout{Local config file natbib.cfg used}}{}
%%
%% <<<<< End of generated file <<<<<<
%%
%% End of file `natbib.sty'.