Discussiones Mathematicae Graph Theory
Discussiones Mathematicae Graph Theory > 1995 > 15 > 1 > 11-18
Discussiones Mathematicae Graph Theory > 1995 > 15 > 2 > 195-203
Discussiones Mathematicae Graph Theory > 1999 > 19 > 2 > 199-217
Discussiones Mathematicae Graph Theory > 2002 > 22 > 1 > 183-192