%0 Journal Article %A V. M. Galkin %T A certain ideal in the group ring of a~cyclic group %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1973 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1973_28_2_a15/ %G ru %F RM_1973_28_2_a15