@inproceedings{VLDB-1978-Delobel,
	author        = "Claude Delobel",
	booktitle     = "{Proceedings of the Fourth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB78/P112.PDF",
	pages         = "112",
	publisher     = "{IEEE Computer Society}",
	title         = "{Data Base Theory and Modeling — Theoretical and Practical Aspects}",
	year          = 1978,
}