%0 Journal Article
%A M. M. Khapaev
%T Conditions for the controllability of singularly perturbed systems
%J Doklady Akademii Nauk
%D 1991
%P 300-302
%V 320
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_320_2_a8/
%G ru
%F DAN_1991_320_2_a8