@inproceedings{ML-1989-MaclinS,
	author        = "Richard Maclin and Jude W. Shavlik",
	booktitle     = "{Proceedings of the Sixth International Workshop on Machine Learning}",
	isbn          = "1-55860-036-1",
	pages         = "444--446",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Enriching Vocabularies by Generalizing Explanation Structures}",
	year          = 1989,
}