@article{10_4064_sm_66_3_237_245,
     author = {Ryotaro Sato},
     title = {Ratio limit theorems and applications to ergodic theory},
     journal = {Studia Mathematica},
     pages = {237--245},
     publisher = {mathdoc},
     volume = {66},
     number = {3},
     year = {1979},
     doi = {10.4064/sm-66-3-237-245},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-66-3-237-245/}
}