@article{1250776701,
author = {Toda, Hirosi},
title = {A topological proof of theorems of Bott and Borel-Hirzeburch for homotopy groups of unitary groups},
journal = {Mem. College Sci. Univ. Kyoto Ser. A Math.},
volume = {32},
number = {2},
year = {1959},
pages = { 103-119},
language = {en},
url = {http://dml.mathdoc.fr/item/1250776701}
}
Toda, Hirosi. A topological proof of theorems of Bott and Borel-Hirzeburch for homotopy groups of unitary groups. Mem. College Sci. Univ. Kyoto Ser. A Math., Tome 32 (1959) no. 2, pp. 103-119. http://gdmltest.u-ga.fr/item/1250776701/