@inproceedings{ICLP-1994-Christiansen,
	author        = "Henning Christiansen",
	booktitle     = "{Proceedings of the 11th International Conference on Logic Programming}",
	isbn          = "0-262-72022-1",
	pages         = "735--736",
	publisher     = "{MIT Press}",
	title         = "{Efficient and Complete Demo Predicates for Definite Clause Languages}",
	year          = 1994,
}