@inproceedings{PODS-1998-NevenBGV,
	author        = "Frank Neven and Jan Van den Bussche and Dirk Van Gucht and Gottfried Vossen",
	booktitle     = "{Proceedings of the 17th Symposium on Principles of Database Systems}",
	cdrom         = "['journals/anthology/cd1-3:PODS98/P189.PDF', 'journals/anthology/dvd1:text/1-3/PODS98/P189.PDF']",
	doi           = "10.1145/275487.275509",
	isbn          = "0-89791-996-3",
	pages         = "189--196",
	publisher     = "{ACM Press}",
	title         = "{Typed Query Languages for Databases Containing Queries}",
	year          = 1998,
}