\documentclass[12pt]{article}
\textheight=23cm
\textwidth=16cm
\voffset-25mm
\hoffset-10mm
\usepackage{amsmath,amsfonts,amssymb}
\pagestyle{empty}
\begin{document}

\begin{center}
{\bf\Large Title of the abstract}\\[2mm]
{\sc Isaac MAXWELL. \underline{James Clerk NEWTON}}\\[2mm]
{Affiliation: Institute, University, Department, City, Country}\\[2mm]
{email: author@email.addr}
\end{center}

The text of the abstract {\bf should not exceed one page}. You may make use of commands from 
the packages amsmath, amsfonts, amssymb. Do not use, please, any nonstandard LaTeX package 
or idiosyncratic input files. If you want to include graphics, please use pdf or jpg, and also 
send us the necessary files.

{\bf If there are two or more co-authors,} do not forget to {\bf indicate the speaker by 
underlining him.} Or, alternatively, you mention your co-authors at the end of the abstract.
If you need to use references, please do not use ``the bibliography" and do not use your 
bibtex file, but make an itemized list as the one below.

When sending in your abstract, please rename it as: Lastname\_Firstname.tex 

\bigskip
\centerline{Newton\_James\_Clark.tex   \hskip15mm Newton\_James\_Clerk.pdf} 
\medskip
\noindent
and send us both a tex file and a pdf file to

\medskip
\centerline{\textbf{cva.mascar@campus.fct.unl.pt}}
\medskip

The deadline for an abstract submission is \textbf{October 1, 2015.} You will be notified 
about acceptance of your oral or poster presentation by \textbf{October 15, 2015.}

The talk is based on joint work with co-author (Here the name of co-author or co-authors 
if not indicated above).

\vskip3mm
{\bf References:}
\begin{itemize}
\item[{[1]}] A.U. Thor: An interesting paper on something, \emph{Acta Math.}, 1 (1927), 372--391.
\item[{[2]}] S.O. Meone: \emph{The standard book on Linear Algebra.} Springer Verlag, 1999.
\end{itemize}
\end{document}



