@inproceedings{NACLP-1990-CodognetCC,
	author        = "Christian Codognet and Philippe Codognet and Marc-Michel Corsini",
	booktitle     = "{Proceedings of the North American Conference on Logic Programming, 2 Volumes}",
	isbn          = "0-262-54058-4",
	pages         = "215--232",
	publisher     = "{MIT Press}",
	title         = "{Abstract Interpretation for Concurrent Logic Languages}",
	year          = 1990,
}