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Discussiones Mathematicae Graph Theory > 2015 > 35 > 4 > 629-639
Discussiones Mathematicae Graph Theory > 2014 > 34 > 1 > 113-125
Discussiones Mathematicae Graph Theory > 2015 > 35 > 4 > 629-639
Discussiones Mathematicae Graph Theory > 2014 > 34 > 1 > 113-125