@inproceedings{KR-1992-LifschitzW,
	author        = "Vladimir Lifschitz and Thomas Y. C. Woo",
	booktitle     = "{Proceedings of the Third International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-262-3",
	pages         = "603--614",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Answer Sets in General Nonmonotonic Reasoning}",
	year          = 1992,
}