@inproceedings{VLDB-1978-Berg,
	author        = "John L. Berg",
	booktitle     = "{Proceedings of the Fourth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB78/P128.PDF",
	pages         = "128--129",
	publisher     = "{IEEE Computer Society}",
	title         = "{Implementing a Three Schema DBMS Framework}",
	year          = 1978,
}