@article{MZM_2017_101_4_a13,
     author = {B. S. Kashin and A. V. Meleshkina},
     title = {Letter to the {Editor}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {640},
     publisher = {mathdoc},
     volume = {101},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_101_4_a13/}
}