@inproceedings{VLDB-1975-NavatheF,
	author        = "Shamkant B. Navathe and James P. Fry",
	booktitle     = "{Proceedings of the First International Conference on Very Large Data Bases}",
	cdrom         = "VLDB75/P174.PDF",
	doi           = "10.1145/1282480.1282493",
	pages         = "174",
	publisher     = "{ACM}",
	title         = "{Restructuring for Large Data Bases: Three Levels of Abstraction}",
	year          = 1975,
}