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"Ohba's conjecture is true for graphs with independence number at most three."
Yufa Shen et al. (2009)
- Yufa Shen, Wenjie He, Guoping Zheng, Yanpo Li:
Ohba's conjecture is true for graphs with independence number at most three. Appl. Math. Lett. 22(6): 938-942 (2009)
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