@inproceedings{ILPC-1982-Sato82,
	author        = "Taisuke Sato",
	booktitle     = "{Proceedings of the First International Logic Programming Conference}",
	pages         = "169--174",
	publisher     = "{ADDP-GIA}",
	title         = "{Negation and Semantics of Prolog Programs}",
	year          = 1982,
}