%0 Journal Article
%A V. I. Arnol'd
%T Remarks on the Morse theory of a divergence-free vector field, the averaging method, and the motion of a charged particle in a magnetic field
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1997
%P 9-19
%V 216
%U http://geodesic.mathdoc.fr/item/TM_1997_216_a1/
%G ru
%F TM_1997_216_a1