TY - JOUR AU - William Browder AU - Alejandro Adem TI - The free rank of symmetry of (Sn)k. JO - Inventiones mathematicae PY - 1988 SP - 431 EP - 440 VL - 92 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1988__92_1_143576/ ID - IM_1988__92_1_143576 ER -