%0 Journal Article
%A M. I. Èskin
%T A boundary value problem for an overdetermined system of two second order equations
%J Doklady Akademii Nauk
%D 1969
%P 491-494
%V 189
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_189_3_a11/
%G ru
%F DAN_1969_189_3_a11