@inproceedings{CADE-1988-ChiH,
	author        = "Shan Chi and Lawrence J. Henschen",
	booktitle     = "{Proceedings of the Ninth International Conference on Automated Deduction}",
	doi           = "10.1007/BFb0012838",
	isbn          = "3-540-19343-X",
	pages         = "294--312",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Recursive Query Answering with Non-Horn Clauses}",
	volume        = 310,
	year          = 1988,
}