@inproceedings{ISLP-1991-DeransartFT,
	author        = "Pierre Deransart and Gérard Ferrand and Michel Téguia",
	booktitle     = "{Proceedings of the Eighth International Symposium on Logic Programming}",
	isbn          = "0-262-69147-7",
	pages         = "533--547",
	publisher     = "{MIT Press}",
	title         = "{NSTO Programs (Not Subject to Occur-Check)}",
	year          = 1991,
}