@misc{KVANT_2020_7_a22,
     title = {{\CYRT}{\cyro}{\cyrl}{\cyrsftsn}{\cyrk}{\cyro} {\cyrl}{\cyri} {\cyri}{\cyrg}{\cyrr}{\cyru}{\cyrsh}{\cyrk}{\cyra}},
     journal = {Kvant},
     pages = {66},
     publisher = {mathdoc},
     number = {7},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_7_a22/}
}