@article{KVANT_2020_9_a15,
     author = {E. Epifanov},
     title = {{\CYRB}{\cyrl}{\cyri}{\cyrz}{\cyrn}{\cyre}{\cyrc}{\cyrery} {\cyrb}{\cyrr}{\cyra}{\cyrt}{\cyrsftsn}{\cyrya}},
     journal = {Kvant},
     pages = {1},
     year = {2020},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_9_a15/}
}