\begin{thebibliography}{CCI88} \bibitem[CCI88]{CCITT.Directory} The directory - overview of concepts, models and services, December 1988. \newblock CCITT X.500 Series Recommendations. \bibitem[Kil88]{THORN.RARE.LSPX} S.E. Kille. \newblock The {THORN} large scale pilot exercise. \newblock {\em Computer Networks and ISDN Systems}, 16(1):143--145, September 1988. \bibitem[Kil89]{NNF} S.E. Kille. \newblock New name forms, May 1989. \newblock ISO/IEC/JTC~21/ WG4/N797 UK National Body Contribution to the Oslo Directory Meeting. \bibitem[Neu89]{Neufeld.Descr} G.W. Neufeld. \newblock Descriptive names in {X.500}. \newblock In {\em SIGCOMM 89 Symposiun Communications Architectures and Protocols}, pages 64--71, September 1989. \bibitem[Pet88]{Profile.2} L.L. Petersen. \newblock The profile naming service. \newblock {\em ACM Transactions on Computing Systems}, 6(4):341--364, November 1988. \end{thebibliography}