@article{MZM_1971_9_1_a13,
     author = {B. S. Pitskel'},
     title = {Some remarks concerning the individual ergodic theorem of information theory},
     journal = {Matemati\v{c}eskie zametki},
     pages = {93--103},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_9_1_a13/}
}