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"Two-colourings that decompose perfect graphs."
Vasek Chvátal, William J. Lenhart, Najiba Sbihi (1990)
- Vasek Chvátal, William J. Lenhart, Najiba Sbihi:
Two-colourings that decompose perfect graphs. J. Comb. Theory B 49(1): 1-9 (1990)

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