@article{05132839,
title = {Bipartite-uniform hypermaps on the sphere.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {14},
year = {2007},
zbl = {1115.05021},
language = {en},
url = {http://dml.mathdoc.fr/item/05132839}
}
D'Azevedo, António Breda ; Duarte, Rui. Bipartite-uniform hypermaps on the sphere.. The Electronic Journal of Combinatorics [electronic only], Tome 14 (2007) . http://gdmltest.u-ga.fr/item/05132839/