Proceedings of SAT 2006, Ninth International Conference on Theory and Applications of Satisfiability Testing, August 12-15, 2006, Seattle, Washington, USA, volume 4121 of Lecture Notes in Computer Science, pages 396-409, 2006.
Proceedings of SAT 2004 (Seventh International Conference on Theory and Applications of Satisfiability Testing, 10-13 May, 2004, Vancouver, BC, Canada), pages 96-103, 2004.