Journal of Combinatorial Optimization
Journal of Combinatorial Optimization > 2013 > 25 > 2 > 176-190
Journal of Combinatorial Optimization > 2013 > 26 > 2 > 266-283
Journal of Combinatorial Optimization > 2013 > 26 > 4 > 655-669
Journal of Combinatorial Optimization > 2013 > 26 > 4 > 832-859