\begin{thebibliography}{Kil89}

\bibitem[Kil89]{NSAP.Approach}
S.E. Kille.
\newblock {\it An interim Approach to use of Network Addresses}.
\newblock Research Note~RN/89/13, Department of Computer Science, University
  College London, February 1989.

\end{thebibliography}
