@inproceedings{ICLP-1994-GallagherW,
	author        = "John P. Gallagher and D. Andre de Waal",
	booktitle     = "{Proceedings of the 11th International Conference on Logic Programming}",
	isbn          = "0-262-72022-1",
	pages         = "599--613",
	publisher     = "{MIT Press}",
	title         = "{Fast and Precise Regular Approximations of Logic Programs}",
	year          = 1994,
}