%0 Journal Article
%A V. V. Kozlov
%T First integrals and asymptotic trajectories
%J Sbornik. Mathematics
%D 2020
%P 29-54
%V 211
%N 1
%U http://geodesic.mathdoc.fr/item/SM_2020_211_1_a1/
%G en
%F SM_2020_211_1_a1