%0 Journal Article
%A I. V. Gaishun
%T Controllability of the characteristic vectors of linear time-dependent systems
%J Differencialʹnye uravneniâ
%D 1999
%P 24-29
%V 35
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1999_35_1_a3/
%G ru
%F DE_1999_35_1_a3