Media type: E-Article Title: The number of defective colorings of graphs on surfaces Contributor: Rackham, Tom imprint: Wiley, 2011 Published in: Journal of Graph Theory Language: English DOI: 10.1002/jgt.20546 ISSN: 0364-9024 Keywords: Geometry and Topology ; Discrete Mathematics and Combinatorics Origination: Footnote: