@inproceedings{LOPSTR-1991-Lever,
	author        = "Jonathan M. Lever",
	booktitle     = "{Proceedings of the First International Workshop on Logic Program Synthesis and Transformation}",
	isbn          = "['3-540-19742-7', '0-387-19742-7']",
	pages         = "1--12",
	publisher     = "{Springer-Verlag}",
	series        = "{Workshops in Computing}",
	title         = "{Program Equivalence, Program Development and Integrity Checking}",
	year          = 1991,
}