%0 Journal Article
%A N. A. Zhura
%T A general boundary value problem for higher-order systems that are elliptic in the Douglis--Nirenberg sense with constant coefficients in the plane
%J Doklady Akademii Nauk
%D 1993
%P 668-671
%V 331
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_331_6_a3/
%G ru
%F DAN_1993_331_6_a3