%0 Journal Article %A D. N. Ivanov %T $\mathscr H$-bijections of groups and $\mathscr H_R$-isomorphisms of group rings %J Sbornik. Mathematics %D 1997 %P 823-841 %V 188 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1997_188_6_a1/ %G en %F SM_1997_188_6_a1