@inproceedings{SAT-2009-PorschenSS,
	author        = "Stefan Porschen and Tatjana Schmidt and Ewald Speckenmeyer",
	booktitle     = "{Proceedings of the 12th International Conference on Theory and Applications of Satisfiability Testing}",
	doi           = "10.1007/978-3-642-02777-2_11",
	isbn          = "978-3-642-02776-5",
	pages         = "86--100",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{On Some Aspects of Mixed Horn Formulas}",
	volume        = 5584,
	year          = 2009,
}