%0 Journal Article
%A V. V. Ivanov
%T Uniformly summable semigroups of operators. II.~Perturbation of semigroups
%J Matematičeskie trudy
%D 1987
%P 159-182
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_1987_9_a14/
%G ru
%F MT_1987_9_a14