@inproceedings{CADE-1990-WakayamaP,
	author        = "Toshiro Wakayama and T. H. Payne",
	booktitle     = "{Proceedings of the 10th International Conference on Automated Deduction}",
	doi           = "10.1007/3-540-52885-7_81",
	isbn          = "3-540-52885-7",
	pages         = "87--101",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Case-Free Programs: An Abstraction of Definite Horn Programs}",
	volume        = 449,
	year          = 1990,
}