%0 Journal Article
%A Yu. V. Egorov
%A Ts. V. Rangelov
%T A class of pseudodifferential equations, with double characteristics, that have no solution
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1977
%V 32
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1977_32_1_a23/
%G ru
%F RM_1977_32_1_a23