%0 Journal Article
%A A. A. Reznik
%T Approximation of the potential surfaces of elliptic operators by difference potentials
%J Doklady Akademii Nauk
%D 1982
%P 1318-1321
%V 263
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1982_263_6_a8/
%G ru
%F DAN_1982_263_6_a8