@article{MP_2021_a9,
     author = {A. L. Kanunnikov},
     title = {{\CYRK}{\cyra}{\cyrk} {\cyrp}{\cyrr}{\cyri}{\cyrd}{\cyru}{\cyrm}{\cyra}{\cyrt}{\cyrsftsn} {\cyrp}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyro}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyri}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyre}{\cyrm}{\cyrn}{\cyra}{\cyrd}{\cyrc}{\cyra}{\cyrt}{\cyri}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyra} ({\cyro}{\cyrk}{\cyro}{\cyrn}{\cyrch}{\cyra}{\cyrn}{\cyri}{\cyre})},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {142--149},
     publisher = {mathdoc},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2021_a9/}
}