%0 Journal Article
%A D. V. Anosov
%T On the behavior in the Euclidean or Lobachevsky plane of trajectories that cover trajectories of flows on closed surfaces.~I
%J Izvestiya. Mathematics 
%D 1988
%P 15-38
%V 30
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1988_30_1_a1/
%G en
%F IM2_1988_30_1_a1