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Journal of Combinatorial Optimization > 2016 > 32 > 2 > 626-638
Journal of Graph Theory > 70 > 2 > 135 - 151
Discrete Mathematics > 2011 > 311 > 21 > 2490-2495
Discrete Applied Mathematics > 2011 > 159 > 11 > 1183-1187
Applied Mathematics Letters > 2009 > 22 > 9 > 1369-1373