\begin{thebibliography}{LHR88}

\bibitem[LHR88]{LHLR:law-paper}
Karl~J. Lieberherr, Ian Holland, and Arthur~J. Riel.
\newblock Object-oriented programming: an objective sense of style.
\newblock In {\it Object-Oriented Programming Systems, Languages and
  Applications Conference}, San Diego, CA., September 1988.
\newblock A very short version of this paper appears in IEEE Computer, June 88,
  Open Channel section, pages 78-79.

\bibitem[Weg87]{wegner:wegner-87}
Peter Wegner.
\newblock The object-oriented classification paradigm.
\newblock In Bruce Shriver and Peter Wegner, editors, {\it Research Directions
  in Object-Oriented Programming}, pages~479--560, The MIT Press, 1987.

\end{thebibliography}