TY  - JOUR
AU  - Faber, Vance
TI  - An upper bound for the minimum valency of a graph embedded in a compact 2-manifold
JO  - Portugaliae mathematica
PY  - 1977
SP  - 139
EP  - 152
VL  - 36
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1977__36_2_115310/
LA  - en
ID  - PORMA_1977__36_2_115310
ER  -