TY - JOUR AU - Kenzi Satô TI - Free groups acting without fixed points on rational spheres JO - Acta Arithmetica PY - 1998 SP - 135 EP - 140 VL - 85 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-85-2-135-140/ DO - 10.4064/aa-85-2-135-140 LA - en ID - 10_4064_aa_85_2_135_140 ER -