Ronald de Haan, Iyad A. Kanj, Stefan Szeider. Local Backbones. Theory and Applications of Satisfiability Testing - SAT 2013 - 16th International Conference, Helsinki, Finland, July 8-12, 2013. Proceedings (Matti Järvisalo and Allen Van Gelder), volume 7962 of Lecture Notes in Computer Science, pages 377-393, 2013, Springer Verlag.