\documentclass{article}

\usepackage{graphicx,subfigure} % style files to allow inclusion of figs & subfigs
\usepackage{a4wide}  % style file to print a decent amount on a sheet of A4
\addtolength{\topmargin}{-1cm}

\title{An analytic solution for sixth-order equations}
\author{V. Hopeful}

\begin{document}

\maketitle  % causes title, author(s) & date to be printed
% To suppress date, include the command \date{} before \maketitle.

\section{Intro}

The introduction.  With loads of citations~\cite{Zisserman87b,Au80} (of course) from a Bibtex database (of course).

\section{How to do it}

This is how to do it\ldots\  To get it published,  we need some sums:
\begin{equation}
x = {-b \pm \sqrt{b^2 - 4ac}} \over {2a}
\end{equation}
We can include a figure (Fig.~\ref{ex1}), created for example by xfig.
\begin{figure}[htb]
\centerline{
\includegraphics[width=15mm]{ex1}
}
\caption{A spiral}
\label{ex1}
\end{figure}
If we are using {\tt pdflatex}, the figure should be exported as a pdf file
(pdflatex will also accept JPEGs and PNGs).  If we are using {\tt latex}, the
figure must be exported as ``encapsulated PostScript'' (.eps).  \footnote{Note
  that the ``$\backslash$includegraphics'' command does not have to include
  the file suffix, so at least we do not have to change our latex file when
  changing between {\tt latex} and {\tt pdflatex.}}  Sorry about that.  For
the truly adventurous, we can also do subfigures --- with separate captions
--- and refer to them individually in the text: Figs.~\ref{ttt} \&~\ref{u}.
\begin{figure}[htb]
\centerline{
\subfigure[left-hand spiral]{\includegraphics[width=35mm]{ex2}\label{ttt}}
\hspace{15mm}
\subfigure[right-hand spiral]{\includegraphics[width=35mm]{ex3}\label{u}}
}
\caption{Some more spirals}
\label{ex2}
\end{figure}

\section{Conclusions}

Etc. etc.

\bibliography{./citations}
\bibliographystyle{plain}

\end{document}