@article{TVP_1972_17_2_a17,
     author = {A. A. Tempel'man},
     title = {A~generalization of an ergodic theorem of {Hopf}},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {380--383},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1972_17_2_a17/}
}