%0 Journal Article
%A Yu. Ya. Belov
%T On strongly hyperbolic systems with a small parameter in Hilbert space
%J Doklady Akademii Nauk
%D 1976
%P 784-787
%V 231
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_231_4_a2/
%G ru
%F DAN_1976_231_4_a2