@inproceedings{VLDB-1981-Gallaire,
	author        = "Hervé Gallaire",
	booktitle     = "{Proceedings of the Seventh International Conference on Very Large Data Bases}",
	cdrom         = "VLDB81/P248.PDF",
	pages         = "248--259",
	publisher     = "{IEEE Computer Society}",
	title         = "{Impacts of Logic and Databases}",
	year          = 1981,
}