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Discussiones Mathematicae Graph Theory > 2014 > 34 > 4 > 651-671
Discussiones Mathematicae Graph Theory > 2013 > 33 > 2 > 247-260
Discussiones Mathematicae Graph Theory > 2012 > 32 > 2 > 205-219
Discussiones Mathematicae Graph Theory > 2011 > 31 > 2 > 293-312