@inproceedings{ALP-1994-CodishM,
	author        = "Michael Codish and Grigory Mashevitzky",
	booktitle     = "{Proceedings of the Fourth International Conference on Algebraic and Logic Programming}",
	doi           = "10.1007/3-540-58431-5_4",
	isbn          = "3-540-58431-5",
	pages         = "6--22",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Proving Implications by Algebraic Approximation}",
	volume        = 850,
	year          = 1994,
}