@article{PDM_2020_2_a0,
     author = {N. M. Mezhennaya and V. G. Mikhailov},
     title = {On the asymptotic normality of the frequencies of~letters in a multicyclic sequence},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {5--15},
     publisher = {mathdoc},
     number = {2},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2020_2_a0/}
}