@misc{KVANT_2020_4_a5,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri}},
     journal = {Kvant},
     pages = {22},
     year = {2020},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_4_a5/}
}