TY - JOUR AU - William Browder AU - Wu-Chung Hsiang TI - G-actions and the Fundamental Group. JO - Inventiones mathematicae PY - 1981 SP - 411 EP - 424 VL - 65 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1981__65_142857/ ID - IM_1981__65_142857 ER -