@article{05686773,
title = {Bipartite coverings and the chromatic number.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {16},
year = {2009},
zbl = {1186.05099},
language = {en},
url = {http://dml.mathdoc.fr/item/05686773}
}
Mubayi, Dhruv; Vishwanathan, Sundar. Bipartite coverings and the chromatic number.. The Electronic Journal of Combinatorics [electronic only], Tome 16 (2009) . http://gdmltest.u-ga.fr/item/05686773/