@inproceedings{KR-1994-LinR,
	author        = "Fangzhen Lin and Raymond Reiter",
	booktitle     = "{Proceedings of the Fourth International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-328-X",
	pages         = "425--436",
	publisher     = "{Morgan Kaufmann}",
	title         = "{How to Progress a Database (and Why) I. Logical Foundations}",
	year          = 1994,
}