@inproceedings{ML-1991-GratchD,
	author        = "Jonathan Gratch and Gerald DeJong",
	booktitle     = "{Proceedings of the Eighth International Workshop on Machine Learning}",
	isbn          = "1-55860-200-3",
	pages         = "509--513",
	publisher     = "{Morgan Kaufmann}",
	title         = "{A Hybrid Approach to Guaranteed Effective Control Strategies}",
	year          = 1991,
}