@inproceedings{VLDB-1979-Buneman,
	author        = "Peter Buneman",
	booktitle     = "{Proceedings of the Fifth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB79/P368.PDF",
	pages         = "368--372",
	publisher     = "{IEEE Computer Society}",
	title         = "{The Problem of Multiple Paths in a Database Schema}",
	year          = 1979,
}