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Discussiones Mathematicae Graph Theory > 2011 > 31 > 4 > 791-820
Discussiones Mathematicae Graph Theory > 2009 > 29 > 1 > 101-117
Discussiones Mathematicae Graph Theory > 2000 > 20 > 2 > 243-254
Discussiones Mathematicae Graph Theory > 2011 > 31 > 4 > 791-820
Discussiones Mathematicae Graph Theory > 2009 > 29 > 1 > 101-117
Discussiones Mathematicae Graph Theory > 2000 > 20 > 2 > 243-254