@article{1178242820,
author = {Sakai, Takashi},
title = {Three remarks on fundamental groups of some Riemannian manifolds},
journal = {Tohoku Math. J. (2)},
volume = {22},
number = {4},
year = {1970},
pages = { 249-253},
language = {en},
url = {http://dml.mathdoc.fr/item/1178242820}
}
Sakai, Takashi. Three remarks on fundamental groups of some Riemannian manifolds. Tohoku Math. J. (2), Tome 22 (1970) no. 4, pp. 249-253. http://gdmltest.u-ga.fr/item/1178242820/