@inproceedings{ICLP-1991-DovierOPR,
	author        = "Agostino Dovier and Eugenio G. Omodeo and Enrico Pontelli and Gianfranco Rossi",
	booktitle     = "{Proceedings of the Eighth International Conference on Logic Programming}",
	isbn          = "0-262-56058-5",
	pages         = "111--124",
	publisher     = "{MIT Press}",
	title         = "{{log}: A Logic Programming Language with Finite Sets}",
	year          = 1991,
}