Discussiones Mathematicae Graph Theory 31(2) (2011)
333-344
doi: 10.7151/dmgt.1549
Veronika Kozáková and Tomás Madaras
Institute of Mathematics, Faculty of Sciences |
Keywords: plane graph, doubly light vertex.
2010 Mathematics Subject Classification: 05C10.
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Received 16 November 2009
Revised 3 June 2010
Accepted 9 June 2010