TY - JOUR AU - Schaller Paul Schmutz TI - Involutions and simple closed geodesics on Riemann surfaces JO - Annales Fennici Mathematici PY - 2000 SP - 91 EP - 100 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AFM_2000_25_1_a5/ LA - en ID - AFM_2000_25_1_a5 ER -