%0 Journal Article
%A P. V. Paramonov
%T $C^m$-approximations by harmonic polynomials on compact sets in~$\mathbb R^n$
%J Sbornik. Mathematics
%D 1994
%P 231-251
%V 78
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1994_78_1_a14/
%G en
%F SM_1994_78_1_a14