@article{DAN_1981_258_2_a10,
     author = {Al. A. Markov},
     title = {On the dependence of the efficiency of alphabet coding on the language of communications},
     journal = {Doklady Akademii Nauk},
     pages = {304--307},
     publisher = {mathdoc},
     volume = {258},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_258_2_a10/}
}