@inproceedings{KR-2002-PetrickL,
	author        = "Ronald P. A. Petrick and Hector J. Levesque",
	booktitle     = "{Proceedings of the Eighth International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-554-1",
	pages         = "303--314",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Knowledge Equivalence in Combined Action Theories}",
	year          = 2002,
}