%0 Journal Article
%A V. N. Trofimov
%T The approximation of functions of certain classes determined by polyharmonic operators, by truncated arithmetic means of partial sums of Fourier series
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1960
%V 15
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1960_15_5_a11/
%G ru
%F RM_1960_15_5_a11