%0 Journal Article
%A E. M. Il'in
%T Scattering by unbounded obstacles for second-order elliptic operators
%J Informatics and Automation
%D 1988
%P 80-101
%V 179
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1988_179_a5/
%G ru
%F TRSPY_1988_179_a5