%0 Journal Article
%A V. I. Gorbaichuk
%T An inverse theorem on approximation of functions by operators of extension to a~canonical domain
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1987
%P 97-98
%V 180
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1987_180_a52/
%G ru
%F TM_1987_180_a52