%0 Journal Article
%A L. A. Grigorenko
%T On the $\sigma$-algebra of symmetrical events for a countable Markov chain
%J Teoriâ veroâtnostej i ee primeneniâ
%D 1979
%P 198-204
%V 24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TVP_1979_24_1_a20/
%G ru
%F TVP_1979_24_1_a20