Color-Critical Graphs on a Fixed Surface

Graph coloring problems

Choice Reviews Online · 1995 · 1.3K citations

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Every Planar Graph Is 5-Choosable

Carsten Thomassen · Journal of Combinatorial Theory Series B · 1994 · 516 citations

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Unsolved problems in geometry

Choice Reviews Online · 1991 · 436 citations

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List colourings of planar graphs

Margit Voigt · Discrete Mathematics · 1993 · 226 citations

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List colourings of planar graphs

Margit Voigt · Discrete Mathematics · 2006 · 194 citations

Computing, Visualization, Combinatorics +11