@inproceedings{SIGMOD-1976-GriffithsW,
	author        = "Patricia P. Griffiths and Bradford W. Wade",
	booktitle     = "{Proceedings of the Sixth ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD76/P051.PDF",
	doi           = "10.1145/509383.509393",
	pages         = "51",
	publisher     = "{ACM}",
	title         = "{An Authorization Mechanism for a Relational Data Base System}",
	year          = 1976,
}