%0 Journal Article %A Oleg H. Izhboldin %A Ina Kersten %T Excellent special orthogonal groups %J Documenta mathematica %D 2001 %P 385-412 %V 6 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/107/ %R 10.4171/dm/107 %F 10_4171_dm_107