%0 Journal Article %A È. B. Vinberg %T Rings of definition of dense subgroups of semisimple linear groups %J Izvestiya. Mathematics %D 1971 %P 45-55 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1971_5_1_a2/ %G en %F IM2_1971_5_1_a2