%0 Journal Article
%A R. I. Kachurovskii
%T On a Fredholm theory for nonlinear operator equations
%J Doklady Akademii Nauk
%D 1970
%P 969-972
%V 192
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_192_5_a3/
%G ru
%F DAN_1970_192_5_a3