%0 Journal Article
%A V. P. Motornyi
%T Approximation of periodic functions by trigonometric polynomials in the mean
%J Matematičeskie zametki
%D 1974
%P 15-26
%V 16
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1974_16_1_a1/
%G ru
%F MZM_1974_16_1_a1