On Certain Reductions in the Four Color Problem (Q5769496)
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scientific article; zbMATH DE number 3029623
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On Certain Reductions in the Four Color Problem |
scientific article; zbMATH DE number 3029623 |
Statements
On Certain Reductions in the Four Color Problem (English)
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1938
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Topology
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