@inproceedings{LICS-1991-Stuckey,
	author        = "Peter J. Stuckey",
	booktitle     = "{Proceedings of the Sixth Annual Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.1991.151657",
	isbn          = "0-8186-2230-X",
	pages         = "328--339",
	publisher     = "{IEEE Computer Society}",
	title         = "{Constructive Negation for Constraint Logic Programming}",
	year          = 1991,
}