@misc{KVANT_2020_7_a9,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2610{\textendash}{\CYRM}2613,} {{\CYRF}2617{\textendash}{\CYRF}2620}},
     journal = {Kvant},
     pages = {22--23},
     year = {2020},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_7_a9/}
}