%0 Journal Article %A N. A. Vavilov %T On subgroups of the unitary group over a~semilocal ring %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1982 %P 145-146 %V 37 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1982_37_4_a26/ %G en %F RM_1982_37_4_a26