@article{KVANT_2021_2_a9,
     author = {A. Gribalko and A. Zaslavskii and O. Manzhina},
     title = {{\CYRO} {\cyrv}{\cyrz}{\cyrv}{\cyre}{\cyrsh}{\cyri}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyri} {\cyrv}{\cyre}{\cyrs}{\cyro}{\cyrv}},
     journal = {Kvant},
     pages = {24--28},
     publisher = {mathdoc},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2021_2_a9/}
}