@article{01420705,
title = {Cubic graphs without a Petersen minor have nowhere-zero 5-flow.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {68},
year = {1999},
pages = {249-252},
zbl = {0934.05050},
language = {en},
url = {http://dml.mathdoc.fr/item/01420705}
}
Kochol, M. Cubic graphs without a Petersen minor have nowhere-zero 5-flow.. Acta Mathematica Universitatis Comenianae. New Series, Tome 68 (1999) pp. 249-252. http://gdmltest.u-ga.fr/item/01420705/