@article{BCEGJetal2008 , author = {Christoph Buchheim and Markus Chimani and Dietmar Ebner and Carsten Gutwenger and Michael J{\"u}nger and Gunnar W. Klau and Petra Mutzel and Ren{\'e} Weiskircher} , title = {A Branch-and-Cut Approach to the Crossing Number Problem} , journal = {Discrete Optimization} , volume = {5} , number = {2} , year = {2008} , pages = {373--388} , doi = {10.1016/j.disopt.2007.05.006} }