Set covering and packing formulations of graph coloring: Algorithms and first polyhedral results.

Pierre Hansen Martine Labbé David Schindl Set covering and packing formulations of graph coloring: Algorithms and first polyhedral results. 135-147 2009 6 Discrete Optimization 2 http://dx.doi.org/10.1016/j.disopt.2008.10.004 db/journals/disopt/disopt6.html#HansenLS09