@article{KVANT_2021_10_a7,
     author = {V. Zakrevskii},
     title = {{\CYRN}{\cyra}{\cyrm} {\cyrp}{\cyri}{\cyrsh}{\cyru}{\cyrt}},
     journal = {Kvant},
     pages = {38},
     year = {2021},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2021_10_a7/}
}