@inproceedings{NACLP-1990-BugliesiLM,
	author        = "Michele Bugliesi and Evelina Lamma and Paola Mello",
	booktitle     = "{Proceedings of the North American Conference on Logic Programming, 2 Volumes}",
	isbn          = "0-262-54058-4",
	pages         = "359--376",
	publisher     = "{MIT Press}",
	title         = "{Partial Evaluation for Hierarchies of Logic Theories}",
	year          = 1990,
}