%0 Journal Article
%A A. I. Koshelev
%T On the smoothness of the solutions of quasi-linear elliptic systems of second order
%J Doklady Akademii Nauk
%D 1976
%P 787-789
%V 228
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_228_4_a5/
%G ru
%F DAN_1976_228_4_a5