@inproceedings{SIGMOD-1976-Date,
	author        = "C. J. Date",
	booktitle     = "{Proceedings of the Sixth ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD76/P101.PDF",
	doi           = "10.1145/509383.509400",
	pages         = "101--122",
	publisher     = "{ACM}",
	title         = "{An Architecture for High-Level Language Database Extensions}",
	year          = 1976,
}