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Discussiones Mathematicae Graph Theory > 2013 > 33 > 2 > 261-275
Discussiones Mathematicae Graph Theory > 2009 > 29 > 3 > 469-480
Discussiones Mathematicae Graph Theory > 2013 > 33 > 2 > 261-275
Discussiones Mathematicae Graph Theory > 2009 > 29 > 3 > 469-480