@inproceedings{VLDB-1975-Chen,
	author        = "Peter P. Chen",
	booktitle     = "{Proceedings of the First International Conference on Very Large Data Bases}",
	cdrom         = "VLDB75/P173.PDF",
	doi           = "10.1145/1282480.1282492",
	pages         = "173",
	publisher     = "{ACM}",
	title         = "{The Enity-Relationship Model: Toward a Unified View of Data}",
	year          = 1975,
}