Ararat Harutyunyan, Bojan Mohar. Planar Digraphs of Digirth Five Are 2-Colorable. Journal of Graph Theory, 84(4):408-427, 2017. [doi]
@article{HarutyunyanM17,
title = {Planar Digraphs of Digirth Five Are 2-Colorable},
author = {Ararat Harutyunyan and Bojan Mohar},
year = {2017},
doi = {10.1002/jgt.22032},
url = {http://dx.doi.org/10.1002/jgt.22032},
researchr = {https://researchr.org/publication/HarutyunyanM17},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {84},
number = {4},
pages = {408-427},
}