@inproceedings{LOPSTR-1998-AyedDFM,
	author        = "Rahma Ben Ayed and Jules Desharnais and Marc Frappier and Ali Mili",
	booktitle     = "{Proceedings of the Eighth International Workshop on Logic Programming Synthesis and Transformation}",
	doi           = "10.1007/3-540-48958-4_21",
	isbn          = "3-540-65765-7",
	pages         = "319--321",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Mathematical Foundations for Program Transformations}",
	volume        = 1559,
	year          = 1998,
}