@inproceedings{ML-1991-RaedtBM,
	author        = "Luc De Raedt and Maurice Bruynooghe and Bern Martens",
	booktitle     = "{Proceedings of the Eighth International Workshop on Machine Learning}",
	isbn          = "1-55860-200-3",
	pages         = "394--398",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Integrity Constraints and Interactive Concept-Learning}",
	year          = 1991,
}