@article{DBLP:journals/jct/BorodinK77,
author = {Oleg V. Borodin and
Alexandr V. Kostochka},
title = {On an upper bound of a graph's chromatic number, depending
on the graph's degree and density},
journal = {J. Comb. Theory, Ser. B},
volume = {23},
number = {2-3},
year = {1977},
pages = {247-250},
ee = {http://dx.doi.org/10.1016/0095-8956(77)90037-5},
bibsource = {DBLP, http://dblp.uni-trier.de}
}