Michael J. Pelsmajer, Marcus Schaefer, Daniel Stefankovic. Odd Crossing Number and Crossing Number Are Not the Same. Discrete & Computational Geometry, 39(1-3):442-454, 2008. [doi]
@article{PelsmajerSS08,
title = {Odd Crossing Number and Crossing Number Are Not the Same},
author = {Michael J. Pelsmajer and Marcus Schaefer and Daniel Stefankovic},
year = {2008},
doi = {10.1007/s00454-008-9058-x},
url = {http://dx.doi.org/10.1007/s00454-008-9058-x},
researchr = {https://researchr.org/publication/PelsmajerSS08},
cites = {0},
citedby = {0},
journal = {Discrete & Computational Geometry},
volume = {39},
number = {1-3},
pages = {442-454},
}