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Open Mathematics > 2012 > 10 > 3 > 1113-1124
Discussiones Mathematicae Graph Theory > 2005 > 25 > 3 > 435-440
Discussiones Mathematicae Graph Theory > 2002 > 22 > 1 > 199-210
Open Mathematics > 2012 > 10 > 3 > 1113-1124
Discussiones Mathematicae Graph Theory > 2005 > 25 > 3 > 435-440
Discussiones Mathematicae Graph Theory > 2002 > 22 > 1 > 199-210