TY - JOUR AU - Timothy Lance TI - Free Cyclic Actions on Manifolds. JO - Commentarii mathematici Helvetici PY - 1975 SP - 59 EP - 80 VL - 50 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1975__50_139608/ ID - CMH_1975__50_139608 ER -