@inproceedings{NACLP-1990-BonacinaH,
	author        = "Maria Paola Bonacina and Jieh Hsiang",
	booktitle     = "{Proceedings of the North American Conference on Logic Programming, 2 Volumes}",
	isbn          = "0-262-54058-4",
	note          = "long version: JLP 14(1&2): 155-188 (1992)",
	pages         = "449--464",
	publisher     = "{MIT Press}",
	title         = "{Operational and Denotational Semantics of Rewrite Programs}",
	year          = 1990,
}