@inproceedings{PLILP-1994-Leal,
	author        = "José Paulo Leal",
	booktitle     = "{Proceedings of the Sixth International Symposium on Programming Language Implementation and Logic Programming}",
	doi           = "10.1007/3-540-58402-1_33",
	isbn          = "3-540-58402-1",
	pages         = "451--452",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A System to Visualize and Interact with Prolog Programs}",
	volume        = 844,
	year          = 1994,
}