@article{01638990,
title = {Competitive colorings of oriented graphs.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {8},
year = {2001},
zbl = {0984.05032},
language = {en},
url = {http://dml.mathdoc.fr/item/01638990}
}
Kierstead, H.A.; Trotter, W.T. Competitive colorings of oriented graphs.. The Electronic Journal of Combinatorics [electronic only], Tome 8 (2001) . http://gdmltest.u-ga.fr/item/01638990/