Discussiones Mathematicae Graph Theory
Discussiones Mathematicae Graph Theory > 2008 > 28 > 2 > 367-373
Discussiones Mathematicae Graph Theory > 2011 > 31 > 4 > 639-674
Discussiones Mathematicae Graph Theory > 2016 > 36 > 2 > 393-408
Discussiones Mathematicae Graph Theory > 2016 > 36 > 4 > 1021-1034