@article{1214435652,
author = {Cheeger, Jeff and Gromoll, Detlef},
title = {On the lower bound for the injectivity radius of $1/4$-pinched Riemannian manifolds},
journal = {J. Differential Geom.},
volume = {15},
number = {1},
year = {1980},
pages = { 437-442},
language = {en},
url = {http://dml.mathdoc.fr/item/1214435652}
}
Cheeger, Jeff; Gromoll, Detlef. On the lower bound for the injectivity radius of $1/4$-pinched Riemannian manifolds. J. Differential Geom., Tome 15 (1980) no. 1, pp. 437-442. http://gdmltest.u-ga.fr/item/1214435652/