%0 Journal Article
%A V. A. Il'in
%A I. A. Shishmarev
%T Smoothness properties of generalized potentials of an elliptic operator
%J Doklady Akademii Nauk
%D 1961
%P 547-550
%V 141
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a7/
%G ru
%F DAN_1961_141_3_a7