\documentclass[12pt,twoside]{article}

\setcounter{page}{11}

\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{ocg}

% PUT IN YOUR OWN MACROS HERE

\pagestyle{myheadings} 
\markboth{authors}{short title}

\begin{document}

\title{TITLE IN CAPITAL LETTERS ONLY} 
\author{First Author$^1$ and Second Author$^{2}$}
\institute{
$^{1}$Affiliation of first author\\
Email: \texttt{email first author}\\
$^{2}$Affiliation of second author\\
Email: \texttt{email second author} 
}

\maketitle

\begin{abstract}
Put in your abstract here.
\end{abstract}

\thispagestyle{empty}

\section{Introduction}

The first section starts with a motivation for your paper. 

Explain the main achievements of your results in relation to previous ones.

\subsection{Subsection}

If necessary, take subsections.

\subsubsection{Subsubsection}

Use subsusections only in special cases.

\section{Results}

Describe your main results, elaborate on the proofs.

\section{Conclusions}

Give a short summary of the results obtained in your paper.

\section*{Acknowledgements}

The authors gratefully acknowledge the useful suggestions and comments of
the unknown referees.

\small

\begin{thebibliography}{99}

\bibitem{BGMV07} BERNARDINI, F., GHEORGHE, M., MARGENSTERN, M., VERLAN, S.,
Networks of cells and Petri nets, in: M. A. Guti\'{e}rrez-Naranjo, Gh. P\u{a}%
un, A. Romero-Jim\'{e}nez, A. Riscos-N\'{u}\~{n}ez (Eds.), Proc. Fifth
Brainstorming Week on Membrane Computing, Sevilla, 2007, 33--62.

\bibitem{Ciobanuetal06} CIOBANU, G., PAN, L., P\u{A}UN, Gh., P\'{E}REZ-JIM%
\'{E}NEZ, M.J., P systems with minimal parallelism, Theoretical Computer
Science 378 (1) (2007), 117--130.

\bibitem{DassowPaun98} DASSOW, J., P\u{A}UN, Gh., On the power of membrane
computing, Journal of Universal Computer Science5 (2)
(1999), 33--49.

\bibitem{Paun98} P\u{A}UN, Gh., Computing with membranes, J. of
Computer and System Sciences 61, 1 (2000), 108--143, and TUCS
Research Report 208 (1998) (\texttt{http://www.tucs.fi}).

\bibitem{Paunbook02} P\u{A}UN, Gh., Membrane Computing. An
Introduction, Springer-Verlag, Berlin 2002.

\bibitem{handbook97} ROZENBERG, G., SALOMAA, A. (Eds.), Handbook of
Formal Languages (3 volumes), Springer-Verlag, Berlin 1997.

\bibitem{Ppage} The P Systems Web Page: \texttt{http://ppage.psystems.eu.}
\end{thebibliography}

\end{document}