@inproceedings{KR-1994-EtzioniGW,
	author        = "Oren Etzioni and Keith Golden and Daniel S. Weld",
	booktitle     = "{Proceedings of the Fourth International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-328-X",
	pages         = "178--189",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Tractable Closed World Reasoning with Updates}",
	year          = 1994,
}