%0 Journal Article
%A S. V. Uspenskii
%A G. V. Demidenko
%T On mixed boundary-value problems for a class of equations unsolved with respect to the highest derivative
%J Doklady Akademii Nauk
%D 1980
%P 560-562
%V 252
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_252_3_a11/
%G ru
%F DAN_1980_252_3_a11