Teorema dels quatre colors (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Teorema dels quatre colors" in Catalan language version.

refsWebsite

Global rank Catalan rank

26^th place

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1,849^th place

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513^th place

202^nd place

gatech.edu

people.math.gatech.edu

Thomas, Robin. Recent Excluded Minor Theorems for Graphs, p. 14.

google.cat

books.google.cat

F. G. «Tinting Maps». The Athenaeum, 10-06-1854, p. 726.

jstor.org

Hudson, Hud «Four Colors Do Not Suffice». The American Mathematical Monthly, 110, 5-2003, pàg. 417–423. JSTOR: 3647828.

wolfram.com

mathworld.wolfram.com

Weisstein, Eric W. «Map Coloring». MathWorld--A Wolfram Web Resource.