@inproceedings{VLDB-1980-Brodie,
	author        = "Michael L. Brodie",
	booktitle     = "{Proceedings of the Sixth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB80/P105.PDF",
	pages         = "105--108",
	publisher     = "{IEEE Computer Society}",
	title         = "{Data Abstraction, Databases and Conceptual Modelling}",
	year          = 1980,
}