Carsten Thomassen, Paul Erdös, Yousef Alavi, Paresh J. Malde, Allen J. Schwenk. Tight bounds on the chromatic sum of a connected graph. Journal of Graph Theory, 13(3):353-357, 1989. [doi]
@article{ThomassenEAMS89,
title = {Tight bounds on the chromatic sum of a connected graph},
author = {Carsten Thomassen and Paul Erdös and Yousef Alavi and Paresh J. Malde and Allen J. Schwenk},
year = {1989},
doi = {10.1002/jgt.3190130310},
url = {http://dx.doi.org/10.1002/jgt.3190130310},
researchr = {https://researchr.org/publication/ThomassenEAMS89},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {13},
number = {3},
pages = {353-357},
}