@inproceedings{VLDB-1976-HartsonH,
	author        = "H. Rex Hartson and David K. Hsiao",
	booktitle     = "{Proceedings of the Second International Conference on Very Large Data Bases}",
	cdrom         = "VLDB76/P027.PDF",
	isbn          = "0-7204-0546-7",
	pages         = "27--42",
	publisher     = "{North Holland & IFIP}",
	title         = "{A Semantic Model for Data Base Protection Languages}",
	year          = 1976,
}