@misc{KVANT_2020_6_a7,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2606{\textendash}{\CYRM}2609,} {{\CYRF}2613{\textendash}{\CYRF}2616}},
     journal = {Kvant},
     pages = {17--18},
     year = {2020},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_6_a7/}
}