@inproceedings{OOPSLA-ECOOP-1990-StraubeO,
	author        = "Dave D. Straube and M. Tamer Özsu",
	booktitle     = "{Proceedings of the Fifth Conference on Object-Oriented Programming, Systems, Languages and Applications / Fourth European Conference on Object-Oriented Programming}",
	doi           = "10.1145/97945.97971",
	editor        = "Akinori Yonezawa",
	isbn          = "0-89791-411-2",
	pages         = "224--233",
	publisher     = "{ACM}",
	title         = "{Type Consistency of Queries in an Object-Oriented Database System}",
	year          = 1990,
}