%0 Journal Article
%A A. A. Agrachev
%T The Curvature and Hyperbolicity of Hamiltonian Systems
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2007
%P 31-53
%V 256
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2007_256_a1/
%G ru
%F TM_2007_256_a1