@article{GDZPPN002356597,
title = {The crossing numbers of some generalized Petersen graphs.},
journal = {Mathematica Scandinavica},
volume = {48},
year = {1981},
pages = {184-188},
zbl = {0442.05021},
url = {http://dml.mathdoc.fr/item/GDZPPN002356597}
}
Harary, F.; Exoo, G.; Kabell, J. The crossing numbers of some generalized Petersen graphs.. Mathematica Scandinavica, Tome 48 (1981) pp. 184-188. http://gdmltest.u-ga.fr/item/GDZPPN002356597/