@article{PDM_2018_2_a9,
     author = {Ya. M. Mirzabekov and Sh. B. Shihiev},
     title = {Formal grammar of {Russian} language in examples},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {114--126},
     publisher = {mathdoc},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2018_2_a9/}
}