%0 Journal Article %A Ya. B. Pesin %T Ljapunov characteristic exponents and ergodic properties of smooth dynamical systems with an invariant measure %J Doklady Akademii Nauk %D 1976 %P 774-777 %V 226 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_226_4_a8/ %G ru %F DAN_1976_226_4_a8