@techreport{repORt:2013-016, author = {J.-B. Gauthier and J. Desrosiers and M. L\"{u}bbecke}, title = {Tools for primal degenerate linear programs: IPS, DCA, and PE}, institution = {Operations Research, RWTH Aachen University}, year = {2013}, number = {2013--016}, month = {Oct} }