This package reimplements the LaTeX \cite command----Research in Astronomy and Astrophysics (RAA)

RAA Macro Package

This package reimplements the LaTeX \cite command

Posted: Mar 21, 2022

%% 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.

%% =============================================

%% Max-Planck-Institut f\"ur Sonnensystemforschung

%% Max-Planck-Str. 2

%% D-37191 Katlenburg-Lindau

%% Germany

%% E-mail: daly@linmpi.mpg.de

\NeedsTeXFormat{LaTeX2e}[1995/06/01]

\ProvidesPackage{natbib}

[2006/03/22 7.3 (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.)

% 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 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.

% 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>

% 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

% 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@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{(Ref.~}{)}{,}{n}{}{}%

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

\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

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

\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}

\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}

\@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*#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

\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

\@for\@citeb:=\NAT@cite@list\do

{\edef\@citeb{\expandafter\@firstofone\@citeb}%

\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

\edef\NAT@last@yr{\@citea \mbox{%

\noexpand\hyper@natlinkstart{\@citeb\@extra@b@citeb}{%

\noexpand\citenumfont{\NAT@num}}\hyper@natlinkend}}%

\else

\edef\NAT@last@yr{--\penalty\@m\mbox{%

\noexpand\hyper@natlinkstart{\@citeb\@extra@b@citeb}{%

\noexpand\citenumfont{\NAT@num}}\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

\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*#1*\else#1\ \fi\fi \NAT@mbox{%

\hyper@natlinkstart{\@citeb\@extra@b@citeb}%

{\citenumfont{\NAT@num}}\hyper@natlinkend}%

\def\@citea{\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

}}%

\ifnum\NAT@cmprs>0\relax\NAT@last@yr\fi

\ifNAT@swa\else\ifnum\NAT@ctype=0\if*#2*\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}

\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}%

\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

\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}%

\global\@namedef{bv@\@citeb\@extra@b@citeb}{}}\@esphack}

\newcommand\NAT@biblabel[1]{\hfill}

\newcommand\NAT@biblabelnum[1]{\bibnumfmt{#1}}

\newcommand\bibnumfmt[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}

\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\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}%

\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}%

\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 generated file <<<<<<

%% End of file `natbib.sty'.

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