@inproceedings{ML-1992-ChengS,
	author        = "Peter C.-H. Cheng and Herbert A. Simon",
	booktitle     = "{Proceedings of the Ninth International Workshop on Machine Learning}",
	isbn          = "1-55860-247-X",
	pages         = "62--71",
	publisher     = "{Morgan Kaufmann}",
	title         = "{The Right Representation for Discovery: Finding the Conservation of Momentum}",
	year          = 1992,
}