@article{05540951,
title = {The crossing number of a projective graph is quadratic in the face-width.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {15},
year = {2008},
zbl = {1159.05016},
language = {en},
url = {http://dml.mathdoc.fr/item/05540951}
}
Gitler, I.; Hlineny, P.; Leaños, J.; Salazar, G. The crossing number of a projective graph is quadratic in the face-width.. The Electronic Journal of Combinatorics [electronic only], Tome 15 (2008) . http://gdmltest.u-ga.fr/item/05540951/