%0 Journal Article
%A V. V. Kozlov
%A N. V. Denisova
%T Symmetries and the~topology of dynamical systems with two degrees of freedom
%J Sbornik. Mathematics
%D 1995
%P 105-124
%V 80
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1995_80_1_a5/
%G en
%F SM_1995_80_1_a5