%0 Journal Article
%A J. V. Rybalov
%T On imbedding theorems for a natural extension of the sobolev class $W^l_p(\Omega)$
%J Izvestiya. Mathematics 
%D 1970
%P 147-157
%V 4
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1970_4_1_a7/
%G en
%F IM2_1970_4_1_a7