@inproceedings{SAT-2007-Kullmann,
	author        = "Oliver Kullmann",
	booktitle     = "{Proceedings of the 10th International Conference on Theory and Applications of Satisfiability Testing}",
	doi           = "10.1007/978-3-540-72788-0_30",
	isbn          = "978-3-540-72787-3",
	pages         = "314--327",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Polynomial Time SAT Decision for Complementation-Invariant Clause-Sets, and Sign-non-Singular Matrices}",
	volume        = 4501,
	year          = 2007,
}