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Four colour theorems: history topological foundations and idea of proof/
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Printed Book |
| Language: | English |
| Published: |
spinger,
1998.
|
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Printed Book |
| Language: | English |
| Published: |
spinger,
1998.
|