On the problem of coloring maps in four colors. Second paper. (Q1445569)
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scientific article; zbMATH DE number 2582958
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the problem of coloring maps in four colors. Second paper. |
scientific article; zbMATH DE number 2582958 |
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On the problem of coloring maps in four colors. Second paper. (English)
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1927
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Auszug aus einem Vortag vor der American Mathematical Society.
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