@inproceedings{SAT-J-2004-BuningZ05,
	author        = "Hans Kleine Büning and Xishun Zhao",
	booktitle     = "{Revised Selected Papers of the Seventh International Conference on Theory and Applications of Satisfiability Testing}",
	doi           = "10.1007/11527695_18",
	isbn          = "3-540-27829-X",
	pages         = "224--234",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Equivalence Models for Quantified Boolean Formulas}",
	volume        = 3542,
	year          = 2005,
}