@article{01862485,
title = {Map genus, forbidden maps, and monadic second-order logic.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {DS10},
year = {2002},
zbl = {1016.05026},
language = {en},
url = {http://dml.mathdoc.fr/item/01862485}
}
Courcelle, B.; Dussaux, V. Map genus, forbidden maps, and monadic second-order logic.. The Electronic Journal of Combinatorics [electronic only], Tome DS10 (2002) . http://gdmltest.u-ga.fr/item/01862485/