%0 Journal Article
%A N. I. Chernov
%T New proof of Sinai's formula for the entropy of hyperbolic billiard systems. Application to Lorentz gases and Bunimovich stadiums
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1991
%P 50-69
%V 25
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1991_25_3_a5/
%G ru
%F FAA_1991_25_3_a5