S. Pirzada, T. A. Naikoo, U. Samee, A. Iványi
Imbalances in directed multigraphs
Acta Universitatis Sapientiae, Mathematica, 2, 2 (2010) 137−145     Full text in PDF
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T. A. Chishti, U. Samee
Mark sequences in bipartite multidigraphs and constructions
Acta Universitatis Sapientiae, Mathematica, 4, 1 (2012) 53−64     Full text in PDF
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