%0 Journal Article %A Hanspeter Kraft %A Claudio Procesi %T On the geometry of conjugacy classes in classical groupes. %J Commentarii mathematici Helvetici %D 1982 %P 539-602 %V 57 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1982__57_139922/ %F CMH_1982__57_139922