@article{KVANT_2021_2_a6,
     author = {E. Krasnova and V. Ptushenko},
     title = {{\CYRK}{\cyrr}{\cyro}{\cyrt}{\cyro}{\cyrv}{\cyrery}{\cyre} {\cyrn}{\cyro}{\cyrr}{\cyrery} {\cyrn}{\cyra} {\cyrl}{\cyrsftsn}{\cyrd}{\cyru} {\cyrm}{\cyro}{\cyrr}{\cyrya}},
     journal = {Kvant},
     pages = {49--50},
     publisher = {mathdoc},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2021_2_a6/}
}