@inproceedings{SIGFIDET-1971-Liu,
	author        = "Honien Liu",
	booktitle     = "{Proceedings of the Second ACM-SIGFIDET Workshop on Data Description, Access and Control}",
	cdrom         = "SIGFIDET71/P349.pdf",
	pages         = "349--372",
	publisher     = "{ACM}",
	title         = "{A Data Base System Defined to Support a Large Information System}",
	year          = 1971,
}