@inproceedings{SAS-1994-AikenL,
	author        = "Alexander Aiken and T. K. Lakshman",
	booktitle     = "{Proceedings of the First International Static Analysis Symposium}",
	doi           = "10.1007/3-540-58485-4_32",
	isbn          = "3-540-58485-4",
	pages         = "43--60",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Directional Type Checking of Logic Programs}",
	volume        = 864,
	year          = 1994,
}