%0 Journal Article
%A Đinh Dung
%T Approximation by trigonometric polynomials of functions of several variables on the torus
%J Sbornik. Mathematics
%D 1988
%P 247-267
%V 59
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1988_59_1_a13/
%G en
%F SM_1988_59_1_a13