TY  - JOUR
AU  - Allan L. Edmonds
AU  - Israel Berstein
TI  - The Degree and Branch Set of a Branched Covering.
JO  - Inventiones mathematicae
PY  - 1978
SP  - 213
EP  - 220
VL  - 45
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1978__45_142545/
ID  - IM_1978__45_142545
ER  -