@article{GDZPPN002328194,
title = {Some Geometric and Topological Properties of the Unit Sphere in a Banach Space.},
journal = {Mathematische Annalen},
volume = {275},
year = {1986},
pages = {613-616},
zbl = {0770.46004},
url = {http://dml.mathdoc.fr/item/GDZPPN002328194}
}
Bor-Luh Lin, Pei-Kee Lin, Troyanski, S. L. Some Geometric and Topological Properties of the Unit Sphere in a Banach Space.. Mathematische Annalen, Tome 275 (1986) pp. 613-616. http://gdmltest.u-ga.fr/item/GDZPPN002328194/