@inproceedings{ILPS-1993-BerryE,
	author        = "Vincent Berry and Philippe Ézéquel",
	booktitle     = "{Proceedings of the International Symposium on Logic Programming}",
	isbn          = "0-262-63152-0",
	pages         = "649",
	publisher     = "{MIT Press}",
	title         = "{Generating Goals and Their Use In Recursive Query Processing}",
	year          = 1993,
}