%0 Journal Article
%A E. Ya. Roitenberg
%T The observability of the solutions of nonlinear differential equations in Hilbert space
%J Doklady Akademii Nauk
%D 1970
%P 746-749
%V 192
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_192_4_a10/
%G ru
%F DAN_1970_192_4_a10