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"On the Hardness of 4-coloring a 3-colorable Graph"
Venkatesan Guruswami, Sanjeev Khanna (2000)
- Venkatesan Guruswami, Sanjeev Khanna:
On the Hardness of 4-coloring a 3-colorable Graph. Electron. Colloquium Comput. Complex. TR00 (2000)

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