\documentstyle[12pt,hep99]{article}
\begin{document}

% This is the HEP99 abstract template.
% When run using LaTeX and the hep99.sty file, a formatted
% abstract for the HEP99 Conference will be produced.
% DO NOT DELETE ANY LATEX CONTROL MARKS FROM THE TEMPLATE.
% --------------------------------------------------------
% Put the TITLE where indicated in the abstract header.
% Put the AUTHOR list (collaboration name) where indicated in the abstract header.
% Use superscripts to indicate affiliations, if there are more than one.
% Collaborations should use the lab name as the affiliation.

% LEAVE EMPTY THE ABSTRACT NUMBER, IT WILL BE ASSIGNED BY 
% THE SCIENTIFIC SECRETARY AFTER SUBMISSION
% ----------------------------------------------------

\begin{flushright}
{\bf EPS-HEP99} \\
{\bf Abstract \# 000} \\
{\bf Parallel sessions: 4,5} \\
{\bf Plenary sessions: 4,5}
\end{flushright}
\abstractheader{ {\bf Put the title here }\\ \\
F. Author$^a$, S. Author$^a$, T. Author$^b$\\
$^a$ University, City, Country \\
$^b$ Research Institute, City, Country
}


% Put the text of the abstract between the {}. 

\abstractbody{
Abstracts for HEP99: this is the abstract main body. 
No figures should be included. If needed, you can give the URL 
(Web reference) of related papers.
}


% DO NOT INCLUDE PICTURES (.eps files) IN THE ABSTRACT
% ----------------------------------------------------
% If needed, you can give the URL (Web reference) of related papers.


\end{document}