%0 Journal Article %A Schaller Paul Schmutz %T Involutions and simple closed geodesics on Riemann surfaces %J Annales Fennici Mathematici %D 2000 %P 91-100 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2000_25_1_a5/ %G en %F AFM_2000_25_1_a5