@article{1200777432,
author = {\=Oshima, Hideaki},
title = {A homotopy group of the symmetric space ${\rm SO}(2n)/{\rm U}(n)$},
journal = {Osaka J. Math.},
volume = {21},
number = {1},
year = {1984},
pages = { 473-475},
language = {en},
url = {http://dml.mathdoc.fr/item/1200777432}
}
Ōshima, Hideaki. A homotopy group of the symmetric space ${\rm SO}(2n)/{\rm U}(n)$. Osaka J. Math., Tome 21 (1984) no. 1, pp. 473-475. http://gdmltest.u-ga.fr/item/1200777432/