@inproceedings{ML-1991-RichardsM,
	author        = "Bradley L. Richards and Raymond J. Mooney",
	booktitle     = "{Proceedings of the Eighth International Workshop on Machine Learning}",
	isbn          = "1-55860-200-3",
	pages         = "447--451",
	publisher     = "{Morgan Kaufmann}",
	title         = "{First-Order Theory Revision}",
	year          = 1991,
}