%0 Journal Article
%A A. M. Sedletskii
%T Mean periodic extension of continuous functions with preservation of smoothness
%J Doklady Akademii Nauk
%D 1973
%P 302-304
%V 212
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_212_2_a8/
%G ru
%F DAN_1973_212_2_a8