%0 Journal Article
%A Masaharu Tanabe
%T Hurwitz' theorem and a genararization for holomorphic maps of closed Riemann surfaces
%J Annales Fennici Mathematici
%D 2009
%P 391-399
%V 34
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AFM_2009_34_2_a5/
%G en
%F AFM_2009_34_2_a5