@Inproceedings{fensel1996pmmafer, author = "Dieter Fensel and Remco Straatman", booktitle = "Proceedings of the 9th European Knowledge Acquisition Workshop EKAW-96, Nottingham, England, May 14-17 1996", publisher = "Springer-Verlag, Berlin", series = "Lecture Notes in Artificial Intelligence (LNAI)", title = "Problem-Solving Methods: Making Assumptions for Efficiency Reasons", year = "1996", }