%0 Journal Article
%A E. B. Frolov
%T A criterion for the attainability of nonlinear systems given on manifolds
%J Differencialʹnye uravneniâ
%D 1981
%P 944-948
%V 17
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_5_a25/
%G ru
%F DE_1981_17_5_a25