@article{KVANT_2023_4_a21,
     author = {A. Rusanov},
     title = {{\CYRCH}{\cyre}{\cyrm}{\cyrp}{\cyri}{\cyro}{\cyrn} {{\CYRE}{\cyrv}{\cyrr}{\cyro}{\cyrp}{\cyrery}}},
     journal = {Kvant},
     pages = {65},
     publisher = {mathdoc},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2023_4_a21/}
}