%0 Journal Article
%A I. V. Emelin
%A M. A. Krasnosel'skii
%T On the theory of ill-posed problems
%J Doklady Akademii Nauk
%D 1979
%P 805-808
%V 244
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a3/
%G ru
%F DAN_1979_244_4_a3