@article{2018,
author = {Samelson, Hans},
title = {A theorem on differentiable manifolds},
journal = {Portugaliae mathematica},
volume = {10},
year = {1951},
pages = {129-133},
zbl = {0054.07202},
mrnumber = {0044882},
language = {en},
url = {http://dml.mathdoc.fr/item/2018}
}
Samelson, Hans. A theorem on differentiable manifolds. Portugaliae mathematica, Tome 10 (1951) pp. 129-133. http://gdmltest.u-ga.fr/item/2018/