@inproceedings{VLDB-1979-Setzer,
	author        = "V. W. Setzer",
	booktitle     = "{Proceedings of the Fifth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB79/P436.PDF",
	pages         = "436--443",
	publisher     = "{IEEE Computer Society}",
	title         = "{Program Development by Transformations Applied to Relational Database Queries}",
	year          = 1979,
}