@article{GDZPPN00209763X,
title = {G-actions and the Fundamental Group.},
journal = {Inventiones mathematicae},
volume = {64},
year = {1981},
pages = {411-424},
zbl = {0519.57034},
url = {http://dml.mathdoc.fr/item/GDZPPN00209763X}
}
Browder, William; Hsiang, Wu-Chung. G-actions and the Fundamental Group.. Inventiones mathematicae, Tome 64 (1981) pp. 411-424. http://gdmltest.u-ga.fr/item/GDZPPN00209763X/