TY - JOUR AU - Ryotaro Sato TI - Ratio limit theorems and applications to ergodic theory JO - Studia Mathematica PY - 1979 SP - 237 EP - 245 VL - 66 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-66-3-237-245/ DO - 10.4064/sm-66-3-237-245 LA - en ID - 10_4064_sm_66_3_237_245 ER -