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Every Planar Map is Four-Colorable

Appel, K., & Haken, W. (1989). Every Planar Map is Four-Colorable. Contemporary Mathematics.

Type
Book
Intellectual base
Review or monograph
Year
1989
DOI
10.1090/conm/098
ISBN
9780821851036
DOI registrant
American Mathematical Society
Link
https://doi.org/10.1090/conm/098

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