Journal of Combinatorial Optimization
Journal of Combinatorial Optimization > 2008 > 15 > 1 > 123-126
Journal of Combinatorial Optimization > 2008 > 15 > 1 > 17-48
Journal of Combinatorial Optimization > 2008 > 15 > 1 > 123-126
Journal of Combinatorial Optimization > 2008 > 15 > 1 > 17-48