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Journal Article

Four Colors Do Not Suffice

Hud Hudson
The American Mathematical Monthly
Vol. 110, No. 5 (May, 2003), pp. 417-423
DOI: 10.2307/3647828
Stable URL: http://www.jstor.org/stable/3647828
Page Count: 7

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Topics: Vertices, Maps, Borderlands, Geographic regions, Connected regions, War
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Four Colors Do Not Suffice
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