%0 Journal Article
%A A. M. Krasnosel'skii
%T One-sided estimates in a problem of forced oscillations in nonlinear control systems
%J Doklady Akademii Nauk
%D 1985
%P 284-286
%V 283
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1985_283_2_a5/
%G ru
%F DAN_1985_283_2_a5