@inproceedings{STOC-2001-BulatovKJ,
	author        = "Andrei A. Bulatov and Andrei A. Krokhin and Peter Jeavons",
	booktitle     = "{Proceedings of the 33rd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/380752.380868",
	isbn          = "1-58113-349-9",
	pages         = "667--674",
	publisher     = "{ACM}",
	title         = "{The complexity of maximal constraint languages}",
	year          = 2001,
}