@inproceedings{SAS-1998-CharatonikP,
	author        = "Witold Charatonik and Andreas Podelski",
	booktitle     = "{Proceedings of the Fifth International Static Analysis Symposium}",
	doi           = "10.1007/3-540-49727-7_17",
	isbn          = "3-540-65014-8",
	pages         = "278--294",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Directional Type Inference for Logic Programs}",
	volume        = 1503,
	year          = 1998,
}