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"Planar graphs without 4- and 6-cycles are (7 : 2)-colorable."
Haitao Wu, Yaojun Chen, Xiaolan Hu (2020)
- Haitao Wu, Yaojun Chen, Xiaolan Hu:
Planar graphs without 4- and 6-cycles are (7 : 2)-colorable. J. Comb. Optim. 40(1): 45-58 (2020)
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