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Every planar map is four colorable. Part II: Reducibility
Home
Publications
Every planar map is four colorable. Part II: Reducibility
Every planar map is four colorable. Part II: Reducibility
KA
K. Appel
K. Appel
WH
W. Haken
W. Haken
JK
J. Koch
J. Koch
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1 September 1977
journal article
Published by
Duke University Press
in
Illinois Journal of Mathematics
Vol. 21
(3)
,
491-567
https://doi.org/10.1215/ijm/1256049012
Abstract
No abstract available
Cited by 340 articles