Yezhou Wu, Dong Ye, Wenan Zang, Cun-Quan Zhang. Nowhere-Zero 3-Flows in Signed Graphs. SIAM J. Discrete Math., 28(3):1628-1637, 2014. [doi]
@article{WuYZZ14,
title = {Nowhere-Zero 3-Flows in Signed Graphs},
author = {Yezhou Wu and Dong Ye and Wenan Zang and Cun-Quan Zhang},
year = {2014},
doi = {10.1137/130941687},
url = {http://dx.doi.org/10.1137/130941687},
researchr = {https://researchr.org/publication/WuYZZ14},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {28},
number = {3},
pages = {1628-1637},
}