@inproceedings{ML-1991-Hamakawa,
	author        = "Rei Hamakawa",
	booktitle     = "{Proceedings of the Eighth International Workshop on Machine Learning}",
	isbn          = "1-55860-200-3",
	pages         = "514--518",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Revision Cost for Theory Refinement}",
	year          = 1991,
}