%0 Journal Article
%A A. V. Babin
%T On the smoothness of solutions of differential equations at singular points of the boundary of the domain
%J Izvestiya. Mathematics 
%D 1991
%P 489-510
%V 37
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1991_37_3_a1/
%G en
%F IM2_1991_37_3_a1