@article{GDZPPN002066742,
title = {Normal subgroups of classical groups over Banach algebras.},
journal = {Commentarii mathematici Helvetici},
volume = {63},
year = {1988},
pages = {103-107},
zbl = {0708.46047},
url = {http://dml.mathdoc.fr/item/GDZPPN002066742}
}
Vaserstein, Leonid N. Normal subgroups of classical groups over Banach algebras.. Commentarii mathematici Helvetici, Tome 63 (1988) pp. 103-107. http://gdmltest.u-ga.fr/item/GDZPPN002066742/