\documentclass$if(classoption)$[$classoption$]$endif${statsoc}
\usepackage{graphicx}
\usepackage{listings}
\usepackage{color}
\usepackage{amssymb, amsmath, geometry}
\usepackage{natbib}
\usepackage{hyperref}

\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>\linewidth\linewidth\else\Gin@nat@width\fi}
\def\maxheight{\ifdim\Gin@nat@height>\textheight\textheight\else\Gin@nat@height\fi}
\makeatother
% Scale images if necessary, so that they will not overflow the page
% margins by default, and it is still possible to overwrite the defaults
% using explicit options in \includegraphics[width, height, ...]{}
\setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}

\title[$short_title$]{$title$}

\author[$short_author$]{$author$}
\address{$affiliation$,
$city$,
$country$}
\email{$email$}

$if(author2)$
\author[$short_author$]{$author2$}
\address{$affiliation2$,
$city2$,
$country2$}
\email{$email2$}
$endif$

% BIBLIOGRAPHY
\usepackage[authoryear]{natbib}
\bibpunct{(}{)}{;}{a}{}{,}

$for(header-includes)$
$header-includes$
$endfor$

\begin{document}

\begin{abstract}
$abstract$
\end{abstract}
$if(keywords)$
\keywords{$keywords$}
$endif$

$body$

\bibliographystyle{rss}
\bibliography{$bibliography$}
\end{document}