%0 Journal Article
%A S. Yu. Kultyshev
%A E. L. Tonkov
%T Controllability of a linear nonstationary system
%J Differencialʹnye uravneniâ
%D 1975
%P 1206-1216
%V 11
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1975_11_7_a6/
%G ru
%F DE_1975_11_7_a6