%0 Journal Article %A S. L. Krupetskii %T Normal structure of the unitary group over a local ring %J Zapiski Nauchnykh Seminarov POMI %D 1982 %P 150-163 %V 114 %U http://geodesic.mathdoc.fr/item/ZNSL_1982_114_a13/ %G ru %F ZNSL_1982_114_a13