@inproceedings{JICSLP-1992-AbreuPC,
	author        = "Salvador Abreu and Luís Moniz Pereira and Philippe Codognet",
	booktitle     = "{Proceedings of the Joint International Ninth Conference and Symposium on Logic Programming}",
	isbn          = "0-262-51064-2",
	pages         = "384--398",
	publisher     = "{MIT Press}",
	title         = "{Improving Backward Execution in the Andorra Family of Languages}",
	year          = 1992,
}