TY  - JOUR
AU  - Masaharu Tanabe
TI  - Hurwitz' theorem and a genararization for holomorphic maps of closed Riemann surfaces
JO  - Annales Fennici Mathematici
PY  - 2009
SP  - 391
EP  - 399
VL  - 34
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AFM_2009_34_2_a5/
LA  - en
ID  - AFM_2009_34_2_a5
ER  -