\newcommand{\noopsort}[1]{}
\begin{thebibliography}{1}

\bibitem{Langlotz-Shortliffe83}
Curtis~P. Langlotz and Edward~H. Shortliffe.
\newblock Adapting a consultation system to critique user plans.
\newblock {\em International Journal of Man-Machine Studies}, 19:479--496,
  1983.

\bibitem{Miller-P86}
Perry~L. Miller.
\newblock {\em Expert Critiquing Systems: Practice-Based Medical Consultation
  by Computer}.
\newblock Springer-Verlag, 1986.

\bibitem{Simmons87}
Reid Simmons and Randall Davis.
\newblock Generate, test, and debug: Combining associational rules and causal
  models.
\newblock In {\em Proceedings of the Tenth International Joint Conference on
  Artificial Intelligence}, pages 1071--1078, 1987.

\bibitem{Sussman75}
Gerald~Jay Sussman.
\newblock {\em A Computer Model of Skill Acquisition}.
\newblock American Elsevier, 1975.

\bibitem{Wellman87b}
Michael~P. Wellman.
\newblock Dominance and subsumption in constraint-posting planning.
\newblock In {\em Proceedings of the Tenth International Joint Conference on
  Artificial Intelligence}, pages 884--890, 1987.

\bibitem{Wellman88a}
Michael~Paul Wellman.
\newblock {\em Formulation of Tradeoffs in Planning Under Uncertainty}.
\newblock PhD thesis, Massachusetts Institute of Technology, July 1988.

\end{thebibliography}
