@inproceedings{AchterbergBerthold2009, author = {Tobias Achterberg and Timo Berthold}, title = {Hybrid Branching}, booktitle = {Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems, 6th International Conference, CPAIOR 2009}, editor = {Willem van Hoeve and John Hooker}, volume = {5547}, pages = {309 -- 311}, year = {2009}, }