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Discussiones Mathematicae Graph Theory > 2013 > 33 > 2 > 395-410
Discussiones Mathematicae Graph Theory > 2004 > 24 > 2 > 239-248
Discussiones Mathematicae Graph Theory > 2000 > 20 > 2 > 271-280
Discussiones Mathematicae Graph Theory > 1996 > 16 > 1 > 53-79
Rozprawy Matematyczne