Bogdan Oporowski, David Zhao. Coloring graphs with crossings. Discrete Mathematics, 309(9):2948-2951, 2009. [doi]
@article{OporowskiZ09,
title = {Coloring graphs with crossings},
author = {Bogdan Oporowski and David Zhao},
year = {2009},
doi = {10.1016/j.disc.2008.07.040},
url = {http://dx.doi.org/10.1016/j.disc.2008.07.040},
tags = {graph-rewriting, rewriting},
researchr = {https://researchr.org/publication/OporowskiZ09},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {309},
number = {9},
pages = {2948-2951},
}