@inproceedings{ILPC-1982-Blair82,
	author        = "Howard A. Blair",
	booktitle     = "{Proceedings of the First International Logic Programming Conference}",
	pages         = "164--168",
	publisher     = "{ADDP-GIA}",
	title         = "{The Undecidability of Two Completeness Notions for the “Negation as Failure”}",
	year          = 1982,
}