@article{MP_2021_a11,
     author = {P. A. Kucheriaviy},
     title = {{\CYRO}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrf}{\cyra}{\cyrk}{\cyrt}{\cyra} {\cyro} {\cyrt}{\cyrr}{\cyre}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyra}{\cyrh} {{\CYRN}{\cyra}{\cyrp}{\cyro}{\cyrl}{\cyre}{\cyro}{\cyrn}{\cyra}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {159--164},
     publisher = {mathdoc},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2021_a11/}
}