%0 Journal Article
%A E. I. Berezhnoi
%T Approximation spaces and interpolation
%J Doklady Akademii Nauk
%D 1980
%P 1289-1291
%V 255
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_255_6_a0/
%G ru
%F DAN_1980_255_6_a0