\documentstyle[cec1999,multicol,times,epsfig]{article}
% cec99.tex, 10 March 1999
%
% Example of using the cec1999.sty style file to prepare
% a paper for the 1999 Congress on Evolutionary Computation.
%

\begin{document}
\pagestyle{empty}
\sloppy

\twocolumn[
%
\title{How to Format Your Paper for the \textit{1999 Congress on
Evolutionary Computation}}
%
%% How you format the author information is up to you; this is
%% merely a suggestion:
%
\vspace{0.1in}
\begin{multicols}{2}
\begin{center}
\textbf{Peter J.\ Angeline}  \\
Natural Selection, Inc. \\
509 Colgate Street \\
Vestal, NY 13850 \\
angeline@natural-selection.com
\end{center}

\begin{center}
\textbf{V.\ William Porto} \\
Natural Selection, Inc. \\
3333 North Torrey Pines Court \\
La Jolla, CA 92037 \\
bporto@natural-selection.com
\end{center}
\end{multicols}
\vspace{0.25in}
] % end of the argument to \twocolumn

\begin{abstract}
These Instructions give you basic guidelines for preparing
camera-ready papers for the 1999 Congress on Evolutionary
Computation. This is the abstract. It is justified and in 10
point bold font. The heading ``Abstract'' a run-in heading and
appears about 3" (75 mm) below the top of the page. The rest
of this paper will provide format examples for all of the
major components of your paper.
\end{abstract}

\section{Introduction}

This is an example of the format you will be using to prepare
your paper for publication in the 1999 Congress on Evolutionary
Computation. You should use an easily readable font,
preferably Times Roman, for all fonts in the paper. Please do
not use a typewriter-style font such as Courier.

The remainder of this article will provide examples of the
formats of all the major components of your paper. Please
follow these directions as closely as possible to ensure that
our proceedings looks like the quality publication the content
will make it.

To make these instructions a little more useful for our non-US
authors, this document will try to give all measurements in
both inches and millimeters. For those who are not familiar
with typesetting terms, here are a few key definitions that
will make reading the following easier:

%
%% This itemized list has tighter spacing than the default
%% LaTeX itemized list.
%
\begin{ceclist}
\item point - A unit of measure equal to 1/72 of an inch. A 10 point font
then is 10/72 of an inch. Point is often abbreviated ``pt''.
\item leading - the space between lines of text. 
\item 1" = 2.54 cm.
\end{ceclist}

%
%% You have to suppress indents following lists like this:
%
\noindent
When preparing your paper, please be sure to consider and
incorporate the comments from your reviewers. They spent
their time reading your paper and making comments in order to
help you publish the best paper possible.

\section{Page Size and Layout}

This format is designed for U.S. paper size of 8.5" x 11".
which will be the published size of the proceedings. Here are
the margin sizes for the format:

\begin{ceclist}
\item Top Margin - 1.0" (25 mm)
\item Left Margin - 0.75" (19 mm)
\item Right Margin - 0.75" 
\item Bottom Margin - 0.75"
\end{ceclist}

\noindent
For those using European A4 paper (21 x 30 cm), you should
stick to the Top and Left Margins and let the Bottom and
Right Margins take up the excess. This goes for other paper
sizes as well.

The double column layout requires the following measurements
for the text columns:

\begin{ceclist}
\item Column Width - 3.375" (86 mm)
\item Column Height - 9.25" (235 mm)
\item Gap Between Columns - 0.25" (6 mm)
\end{ceclist}

\noindent
You are allowed exactly 8 pages for your publication. No
more. You can always take fewer pages but you may not take
more than 8 pages. This includes all figures, tables, graphs,
photos, and bibliography entries. If you simply must have
more than 8 pages, the additional cost is \$100 per extra
page.

\section{Title and Authors}

The title of the paper is centered one inch below the top of
the page in 16 or 14 point bold font. Use 14 pt font only if
the length of your title makes it necessary.

Right below the title are the names of the authors, their
affiliation information and their email addresses. The font
size for the authors is 12pt while their affiliation
information is in 10pt. The author font is bold but the
affiliation is not, as shown above.

The organization for the authors above is just an example.
You can center all names if you'd rather. But be certain that
the top of the main body of your article begins pretty close
to 3" (75 mm) below the title. Remember to leave a little
room below the affiliations so as not to crowd the top of the
text in the columns.

\section{Body Paragraphs}

The main text for your paragraphs should be 10pt font with 1
or 2 pt leading. Again, don't use a typewriter-style font
(e.g. Courier). Use a more readable and clear font like Times
Roman for your paper.
 
All body paragraphs should have the first line indented about
0.175" (44 mm) except for the first paragraph following a
heading which is not indented.

\newpage
\begin{figure}[htbp]
\twocolumn[
    \begin{center}
  \epsfig{file=header.ps,width=15cm,height=3cm}      
      \caption{CEC99 header, expanded on 2 columns}
      \label{fig:logo}
    \end{center}
~\\ % a blank line to leave some space below the caption 
]
\end{figure}

\section{Section Headings}

Section headings come in three varieties: first level
headings, sub-headings (i.e. greater than first level heading)
and unnumbered headings. All section headings should be
numbered sequentially, except for unnumbered headings which
are, of course, unnumbered.

\subsection{First-level Headings}

First level section headings, (i.e. 1.0) are 12pt bold with
12pt of leading before and 6pts of leading after.

\subsection{Higher Sub-Headings}

For Sub-Headings higher than First-Level, use 10pt bold font.
It is permissible to use italics for these headings, but be
consistent!

\subsection{Unnumbered Headings}

The section heading for the Acknowledgments and Bibliography
sections are both unnumbered headings. These headings are
identical to First-Level Headings except they do not have
numbers. See the end of this example article for how they
should look.

\section{Footnotes}

Footnotes, should be used sparingly\footnote{When used too
much, footnotes can ruin a paper by breaking-up the flow of
the thoughts in the text.} if at all\footnote{Most times a
parenthetical remark within the text body is sufficient and a
footnote can be avoided.}. Footnotes should be 9pt font with
1 pt leading and should appear at the bottom of the page
within a single column\footnote{Be sure not to violate the
bottom margin by the placement of a footnote!}. A thin rule
(line) should be used to set off the footnote from the
text\footnote{As shown at the top of this set of footnotes.}.

Moreover, \LaTeX tends to lose balance between columns if too many
footnotes are present.

\section{Citations in Text}

Author's name and year, e.g., (Fogel 1995), is the preferred
format. But use the form you are most comfortable with. Check
to be sure that the references are complete and accurate.

The bibliography format again should be whatever you are
comfortable with. It is preferred you use a format similar to
the \textit{IEEE Transactions} formats, but any will do. Be sure to
list the page numbers for articles appearing in edited
volumes, such as conference proceedings. Also be sure to list
the first initials and full last names of the editors for an
edited volume.

\section{Illustrations}

Place illustrations (figures, tables, drawings, and
photographs) throughout the paper at the places where they
are first discussed in the text, rather than at the end of
the paper. If placed at the bottom or top of the page, the
illustration may run across both columns.
This is a test with a figure into one single column
  \begin{figure}[htbp]
    \begin{center}
  \epsfig{file=header.ps,width=5cm,height=2cm}      
      \caption{CEC99 header}
      \label{fig:1col}
    \end{center}
  \end{figure}

and you can see at top of this page Figure \ref{fig:logo} running
accross both columns.

Number illustrations sequentially (but number tables
separately). Place the illustration numbers and caption under
the illustration in 9pt font. Do not allow illustrations to
extend into the margins or the gap between columns (except
2-column illustrations may cross the gap).

\section{Identifying Your Paper}

Please be sure to write the names of the authors and the page
number on the back of each page of your paper lightly in
pencil. Number your pages sequentially starting at ``1''. This
information is for identification only; final page numbers
will be assigned by the publisher.

\section{Conclusions}

If you have any questions, please contact one of the authors
of this document by email, or send a note to the conference
email at {\em cec99\@natural-selection.com}.

\section*{Acknowledgments}

This format example was patterned after a similar example
provided for the authors of the EP96 conference proceedings
(\cite{ange96}) and was modified for usage for CEC99. The
EP96 format instructions acknowledged Stuart Wilson for
providing the initial write-up for the format from which much
of that example was generated (\cite{ange96}).

\begin{thebibliography}{ange96}

\bibitem[ange96]{ange96} Angeline, P.
and Baeck, T. (1996) "How to Format Your Paper for the Fifth
Annual Conference on Evolutionary Programming," Unpublished
Document Provided to EP96 Authors.

\end{thebibliography}

\end{document}