@article{1077306299,
author = {Katz, Mikhail},
title = {A note on hyperspherical manifolds of positive curvature and
geometric contractibility},
journal = {Duke Math. J.},
volume = {54},
number = {1},
year = {1987},
pages = { 839-841},
language = {en},
url = {http://dml.mathdoc.fr/item/1077306299}
}
Katz, Mikhail. A note on hyperspherical manifolds of positive curvature and
geometric contractibility. Duke Math. J., Tome 54 (1987) no. 1, pp. 839-841. http://gdmltest.u-ga.fr/item/1077306299/