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"Tight bounds on the chromatic sum of a connected graph."
Carsten Thomassen et al. (1989)
- Carsten Thomassen, Paul Erdös, Yousef Alavi, Paresh J. Malde, Allen J. Schwenk:
Tight bounds on the chromatic sum of a connected graph. J. Graph Theory 13(3): 353-357 (1989)
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