%0 Journal Article
%A Yu. K. Lando
%T The principle of conjugate correspondence and rank tests of controllability
%J Differencialʹnye uravneniâ
%D 1979
%P 2095-2097
%V 15
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_11_a21/
%G ru
%F DE_1979_15_11_a21