@inproceedings{ISLP-1991-KakasM,
	author        = "Antonis C. Kakas and Paolo Mancarella",
	booktitle     = "{Proceedings of the Eighth International Symposium on Logic Programming}",
	isbn          = "0-262-69147-7",
	pages         = "85--100",
	publisher     = "{MIT Press}",
	title         = "{Stable Theories for Logic Programs}",
	year          = 1991,
}