Geodesic
A new proof of 3-colorability of Eulerian triangulations
Ars Mathematica Contemporanea, Tome 4 (2011) no. 1, pp. 73-77.

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Using the existence of noncrossing Eulerian circuits in Eulerian plane graphs, we give a short constructive proof of the theorem of Heawood that Eulerian triangulations are 3-colorable.
DOI : 10.26493/1855-3974.193.8e7
Keywords: Plane triangulation, Eulerian circuit, 3-colorable, Heawood's Theorem 
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Mu-Tsun Tsai; Douglas B. West. A new proof of 3-colorability of Eulerian triangulations. Ars Mathematica Contemporanea, Tome 4 (2011) no. 1, pp. 73-77. doi : 10.26493/1855-3974.193.8e7. http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.193.8e7/

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