Discussiones Mathematicae Graph Theory
Discussiones Mathematicae Graph Theory > 2006 > 26 > 1 > 73-76
Discussiones Mathematicae Graph Theory > 2007 > 27 > 3 > 401-407
Discussiones Mathematicae Graph Theory > 2010 > 30 > 2 > 289-314
Discussiones Mathematicae Graph Theory > 2015 > 35 > 2 > 207-214
Discussiones Mathematicae Graph Theory > 2017 > 38 > 1 > 217-231