@inproceedings{JICSCP-1988-Przymusinski88,
	author        = "Teodor C. Przymusinski",
	booktitle     = "{Proceedings of the Joint International Fifth Conference and Symposium on Logic Programming, 2 Volumes}",
	isbn          = "0-262-61056-6",
	pages         = "1081--1096",
	publisher     = "{MIT Press}",
	title         = "{Perfect Model Semantics}",
	year          = 1988,
}