@article{1214441178,
author = {Durumeric, O.},
title = {A generalization of Berger's theorem on almost $\frac 14$-pinched manifolds. II},
journal = {J. Differential Geom.},
volume = {25},
number = {1},
year = {1987},
pages = { 101-139},
language = {en},
url = {http://dml.mathdoc.fr/item/1214441178}
}
Durumeric, O. A generalization of Berger's theorem on almost $\frac 14$-pinched manifolds. II. J. Differential Geom., Tome 25 (1987) no. 1, pp. 101-139. http://gdmltest.u-ga.fr/item/1214441178/