@article {291, title = {Editorial for the Special Issue on Combinatorial Optimization Problems}, journal = {Evolutionary Computation Journal}, volume = {24}, year = {2016}, month = {12/2016}, type = {Editorial}, issn = {1063-6560 }, doi = {10.1162/EVCO_e_00192}, author = {Francisco Chicano and Christian Blum and Gabriela Ochoa} }