%0 Journal Article
%A A. A. Arkhipova
%T On smoothness of solutions of the problem with obstacle
%J Zapiski Nauchnykh Seminarov POMI
%D 1973
%P 7-9
%V 38
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1973_38_a1/
%G ru
%F ZNSL_1973_38_a1