%0 Journal Article
%A M. A. Krasnosel'skii
%T On several new fixed point principles
%J Doklady Akademii Nauk
%D 1973
%P 1280-1281
%V 208
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_208_6_a4/
%G ru
%F DAN_1973_208_6_a4