This VIAF Cluster has been deleted. It is no longer part of VIAF.
Ringel, Gerhard. | Map color theorem
VIAF ID: 312411089 ( Unknown Name Type )
Permalink: http://viaf.org/viaf/312411089
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Author
:
Ringel, Gerhard.
Language | Title | Expression | Sources |
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Russian | Теорема о раскраске карт | Алексеев :1977 |