Discrete Mathematics · 2006 · 236 citations · 11 references
Natural SciencesMathematicsCombinatoricsComputational GeometryGeometryColor ModelsDirected Acyclic GraphsGraph ColoringGraph TheoryAcyclic ColoringColoring Planar GraphsColoring TheoremsPlanar GraphsVertex Coloring
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Acyclic colorings of planar graphs
Branko Grünbaum · Israel Journal of Mathematics · 1973 · 406 citations
Every planar graph has an acyclic 8-coloring
John Mitchem · Duke Mathematical Journal · 1974 · 76 citations