%0 Journal Article %A Schaller Paul Schmutz %T Geometric characterization of hyperelliptic Riemann surfaces %J Annales Fennici Mathematici %D 2000 %P 85-90 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2000_25_1_a4/ %G en %F AFM_2000_25_1_a4