Microfiche supplement to “Every planar map is four colorable”
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Published:1977-09-01
Issue:3
Volume:21
Page:
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ISSN:0019-2082
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Container-title:Illinois Journal of Mathematics
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language:
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Short-container-title:Illinois J. Math.
Author:
Appel K.,Haken W.
Publisher
Duke University Press
Subject
General Mathematics
Cited by
3 articles.
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