%0 Journal Article
%A A. B. Katok
%A A. M. Stepin
%T Approximation of ergodic dynamical systems by periodic transformations
%J Doklady Akademii Nauk
%D 1966
%P 1268-1271
%V 171
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_171_6_a6/
%G ru
%F DAN_1966_171_6_a6