@inproceedings{SLP-1985-LeviP85,
	author        = "Giorgio Levi and Catuscia Palamidessi",
	booktitle     = "{Proceedings of the Second Symposium on Logic Programming}",
	isbn          = "0-8186-0636-3",
	pages         = "128--137",
	publisher     = "{IEEE-CS}",
	title         = "{The Declarative Semantics of Logical Read-Only Variables}",
	year          = 1985,
}