%0 Journal Article %A B. Kh. Kirshtein %T Invariant subrings of induced rings %J Sbornik. Mathematics %D 1972 %P 381-388 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1972_16_3_a4/ %G en %F SM_1972_16_3_a4