%0 Journal Article
%A M. I. Ganzburg
%T Exact constants of the best harmonic approximation of a function
%J Doklady Akademii Nauk
%D 1988
%P 788-791
%V 298
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1988_298_4_a3/
%G ru
%F DAN_1988_298_4_a3