%0 Journal Article
%A S. V. Emel'yanov
%A S. K. Korovin
%A S. V. Nikitin
%T Criteria for controllability of two-dimensional nonlinear systems
%J Doklady Akademii Nauk
%D 1987
%P 1310-1314
%V 294
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_294_6_a5/
%G ru
%F DAN_1987_294_6_a5