%0 Journal Article
%A M. I. Freidlin
%T On the smoothness of solutions of degenerate elliptic equations
%J Izvestiya. Mathematics 
%D 1968
%P 1337-1359
%V 2
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1968_2_6_a7/
%G en
%F IM2_1968_2_6_a7