%0 Journal Article
%A N. I. Nagnibida
%T Integral perturbations of the operator of multiplication by an
%J Doklady Akademii Nauk
%D 1987
%P 542-545
%V 292
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_292_3_a6/
%G ru
%F DAN_1987_292_3_a6