@inproceedings{VLDB-1978-Palmer,
	author        = "I. R. Palmer",
	booktitle     = "{Proceedings of the Fourth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB78/P148.PDF",
	pages         = "148--155",
	publisher     = "{IEEE Computer Society}",
	title         = "{Record Subtype Facilities in Database Systems}",
	year          = 1978,
}