%0 Journal Article
%A V. F. Lazutkin
%T Analytic integrals of a~semistandard mapping, and separatrix splitting
%J Algebra i analiz
%D 1989
%P 116-131
%V 1
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1989_1_2_a6/
%G ru
%F AA_1989_1_2_a6