%0 Journal Article
%A N. V. Svanidze
%T Small perturbations of an integrable dynamical system with an integral invariant
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1980
%P 124-146
%V 147
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1980_147_a8/
%G ru
%F TM_1980_147_a8