@article{GDZPPN002298244,
title = {On the Structure of the Infinite Dimensional Unitary Group},
journal = {Mathematische Annalen},
volume = {174},
year = {1967},
pages = {197-202},
zbl = {0146.25506},
url = {http://dml.mathdoc.fr/item/GDZPPN002298244}
}
Spiegel, E. On the Structure of the Infinite Dimensional Unitary Group. Mathematische Annalen, Tome 174 (1967) pp. 197-202. http://gdmltest.u-ga.fr/item/GDZPPN002298244/