@misc{KVANT_2020_4_a18,
     title = {XLI {{\CYRT}{\cyru}{\cyrr}{\cyrn}{\cyri}{\cyrr}} {\cyrg}{\cyro}{\cyrr}{\cyro}{\cyrd}{\cyro}{\cyrv}},
     journal = {Kvant},
     pages = {61--64},
     publisher = {mathdoc},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_4_a18/}
}