%0 Journal Article
%A M. I. Vishik
%T On the solvability of the first boundary value problem for nonlinear elliptic systems of differential equations
%J Doklady Akademii Nauk
%D 1960
%P 749-752
%V 134
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_134_4_a1/
%G ru
%F DAN_1960_134_4_a1