@article{KVANT_2024_8_a18, author = {M. Nikitin}, title = {{\CYRF}{\cyre}{\cyrs}{\cyrt}{\cyri}{\cyrv}{\cyra}{\cyrl}{\cyrsftsn} {{\CYRK}{\cyri}{\cyrr}{\cyrh}{\cyrg}{\cyro}{\cyrf}{\cyrf}{\cyra}}}, journal = {Kvant}, pages = {42--46}, publisher = {mathdoc}, number = {8}, year = {2024}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2024_8_a18/} }