%0 Journal Article
%A O. A. Ladyzhenskaya
%A V. Ya. Rivkind
%A N. N. Ural'tseva
%T Classical solvability of diffraction problems for equations of elliptic and parabolic types
%J Doklady Akademii Nauk
%D 1964
%P 513-515
%V 158
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_158_3_a3/
%G ru
%F DAN_1964_158_3_a3