TY - JOUR AU - Ya. B. Pesin TI - Ljapunov characteristic exponents and ergodic properties of smooth dynamical systems with an invariant measure JO - Doklady Akademii Nauk PY - 1976 SP - 774 EP - 777 VL - 226 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_226_4_a8/ LA - ru ID - DAN_1976_226_4_a8 ER -