%0 Journal Article
%A L. G. Mikhailov
%T The Riemannian type of boundary problem for elliptical systems of first order differential equations
%J Doklady Akademii Nauk
%D 1957
%P 13-15
%V 112
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_112_1_a1/
%G ru
%F DAN_1957_112_1_a1