%0 Journal Article
%A N. S. Nadirashvili
%T A lemma on the inner derivative, and the uniqueness of the solution of the second boundary value problem for second order elliptic equations
%J Doklady Akademii Nauk
%D 1981
%P 804-808
%V 261
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1981_261_4_a7/
%G ru
%F DAN_1981_261_4_a7