@article{1214458972,
author = {Abresch, Uwe and Meyer, Wolfgang T.},
title = {A sphere theorem with a pinching constant below ${1\o ver4}$},
journal = {J. Differential Geom.},
volume = {43},
number = {3},
year = {1996},
pages = { 214-261},
language = {en},
url = {http://dml.mathdoc.fr/item/1214458972}
}
Abresch, Uwe; Meyer, Wolfgang T. A sphere theorem with a pinching constant below ${1øver4}$. J. Differential Geom., Tome 43 (1996) no. 3, pp. 214-261. http://gdmltest.u-ga.fr/item/1214458972/