@inproceedings{SIGMOD-1993-Vieille,
	author        = "Laurent Vieille",
	booktitle     = "{Proceedings of the 23rd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD93/P438.PDF",
	doi           = "10.1145/170035.170120",
	pages         = "438",
	publisher     = "{ACM Press}",
	title         = "{A Deductive and Object-Oriented Database System: Why and How?}",
	year          = 1993,
}