%0 Journal Article
%A V. L. Rvachev
%A O. N. Bobyleva
%T Approximation properties of structures of difference type for the
%J Doklady Akademii Nauk
%D 1988
%P 291-293
%V 298
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1988_298_2_a6/
%G ru
%F DAN_1988_298_2_a6