Discussiones Mathematicae Graph Theory
Discussiones Mathematicae Graph Theory > 2001 > 21 > 2 > 179-185
Discussiones Mathematicae Graph Theory > 2004 > 24 > 2 > 249-262
Discussiones Mathematicae Graph Theory > 2008 > 28 > 3 > 563-566
Discussiones Mathematicae Graph Theory > 2013 > 33 > 2 > 307-313
Discussiones Mathematicae Graph Theory > 2016 > 36 > 2 > 409-418
Discussiones Mathematicae Graph Theory > 2017 > 37 > 3 > 797-809