Use the styles exemplified by \cite{HB98}, \cite{CA}, \cite{MSW00} and
\cite{Rei91} below.  Order bibliography items alphabetically as shown.  The
two-page limit includes the bibliography.

\footnotesize
 \begin{thebibliography}{99}

\bibitem{HB98} Huynen, M.~A. and Bork, P. 1998. Measuring genome evolution. {\em
Proceedings of the National Academy of Sciences USA}
  95:5849--5856.

\bibitem{CA} Caprara, A. 1997. Sorting by reversals is difficult. In: {\em
Proceedings of the First Annual International Conference on Computational
Molecular Biology (RECOMB 97),} New York: ACM.  pp. 75-83.

\bibitem{MSW00}McLysaght, A., Seoighe, C. and Wolfe, K.~H. 2000. High frequency
of inversions during eukaryote gene order evolution.     In Sankoff, D. and
Nadeau, J.~H., editors, {\em Comparative Genomics},  Dordrecht, NL: Kluwer
Academic Press. pp. 47--58.

\bibitem{Rei91} Reinelt, G. 1991. {\em The Traveling Salesman - Computational
Solutions for TSP Applications.} Berlin: Springer Verlag.

\end{thebibliography}