@inproceedings{VLDB-1983-Verroust,
	author        = "Anne Verroust",
	booktitle     = "{Proceedings of the Ninth International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1983/P312.PDF",
	isbn          = "0-934613-15-X",
	pages         = "312--321",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Characterization of Well-Behaved Database Schemata and Their Update Semantics}",
	year          = 1983,
}