@article{MZM_1994_56_5_a16,
     author = {V. P. Cherkashin},
     title = {Letter to the editor},
     journal = {Matemati\v{c}eskie zametki},
     pages = {142},
     year = {1994},
     volume = {56},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_5_a16/}
}