@article{GDZPPN002352281,
title = {A Maximal Toroidal Graph which is not a Triangulation.},
journal = {Mathematica Scandinavica},
volume = {32},
year = {1973},
pages = {108-112},
zbl = {0271.05108},
url = {http://dml.mathdoc.fr/item/GDZPPN002352281}
}
Harary, F.; Kainen, P.C.; Schwenk, A.J. A Maximal Toroidal Graph which is not a Triangulation.. Mathematica Scandinavica, Tome 32 (1973) pp. 108-112. http://gdmltest.u-ga.fr/item/GDZPPN002352281/