Volkmann, Lutz, Germany

• Tamkang Journal of Mathematics Vol. 52 No. 4 (2021) - Papers
  Weak Signed Roman Domination in Digraphs
  Abstract  PDF
• Tamkang Journal of Mathematics Vol. 47 No. 4 (2016) - Papers
  The Roman bondage number of a digraph
  Abstract  PDF
• Tamkang Journal of Mathematics Vol. 49 No. 2 (2018) - Papers
  The restrained rainbow bondage number of a graph
  Abstract  PDF