@inproceedings{VLDB-1981-ChamberlinGY,
	author        = "Donald D. Chamberlin and A. M. Gilbert and Robert A. Yost",
	booktitle     = "{Proceedings of the Seventh International Conference on Very Large Data Bases}",
	cdrom         = "VLDB81/P456.PDF",
	pages         = "456--464",
	publisher     = "{IEEE Computer Society}",
	title         = "{A History of System R and SQL/Data System}",
	year          = 1981,
}