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\bibitem{booch:86}
G.~Booch.
\newblock Object-oriented development.
\newblock {\em IEEE Transactions on Software Engineering}, SE-12(2), February
  1986.

\bibitem{knudsen-madsen:teach}
J.~L. Knudsen and O.~L. Madsen.
\newblock Teaching object-oriented programming is more than teaching
  object-oriented programming languages.
\newblock In S.Gjessing and K.~Nygaard, editors, {\em European Conference on
  Object-Oriented Programming}, pages 21--40, Oslo, Norway, 1988. Springer
  Verlag.

\bibitem{karl-ian:soft1}
K.~J. Lieberherr and I.~Holland.
\newblock Assuring good style for object-oriented programs.
\newblock {\em IEEE Software}, pages 38--48, September 1989.

\bibitem{ian-karl:preventive}
K.~J. Lieberherr and I.~Holland.
\newblock Tools for preventive software maintenance.
\newblock In {\em Conference on Software Maintenance}, pages 2--13, Miami,
  Florida, October 16-19, 1989. IEEE Press.

\bibitem{LHLR:law-paper}
K.~J. Lieberherr, I.~Holland, and A.~J. Riel.
\newblock Object-oriented programming: An objective sense of style.
\newblock In {\em Object-Oriented Programming Systems, Languages and
  Applications Conference, {\em in} Special Issue of SIGPLAN Notices},
  number~11, pages 323--334, San Diego, CA, September 1988.
\newblock A short version of this paper appears in {\em IEEE Computer
  Magazine}, June 1988, Open Channel section, pages 78-79.

\bibitem{lieber-riel:oop}
K.~J. Lieberherr and A.~J. Riel.
\newblock Demeter: A {CASE} study of software growth through parameterized
  classes.
\newblock {\em Journal of Object-Oriented Programming}, 1(3):8--22, August,
  September 1988.
\newblock A shorter version of this paper was presented at the {\em 10th
  International Conference on Software Engineering, Singapore, April 1988, IEEE
  Press}, pages 254-264.

\bibitem{sakkinen:law-88}
M.~Sakkinen.
\newblock Comments on the {Law of Demeter} and {C++}.
\newblock {\em SIGPLAN Notices}, 23(12):38--44, December 1988.

\bibitem{sethi:bear}
R.~Sethi.
\newblock {\em Programming Languages: Concepts and Constructs}.
\newblock Addison-Wesley, 1989.

\bibitem{alg-des:89}
D.~Steier.
\newblock Automating algorithm design within a general architecture for
  intelligence.
\newblock Technical Report CS-89-128, Carnegie Mellon University, April 1989.

\end{thebibliography}