%0 Journal Article
%A M. A. Abel
%A A. G. Fleischer
%T Scientific conference ``Theoretical and Applied Problems in Mathematics''
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1986
%V 41
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1986_41_3_a32/
%G ru
%F RM_1986_41_3_a32