%0 Journal Article
%A M. M. Simkin
%T Criterium of proximity of impulse- and continuous systems
%J Doklady Akademii Nauk
%D 1973
%P 783-786
%V 210
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_210_4_a8/
%G ru
%F DAN_1973_210_4_a8