@article{DAN_1974_214_2_a10,
     author = {A. A. Markov},
     title = {On the language {{\CYRYA}}$_1$},
     journal = {Doklady Akademii Nauk},
     pages = {279--282},
     year = {1974},
     volume = {214},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_214_2_a10/}
}