@article{MP_2023_3_30_a11,
     author = {A. Ya. Buchaev and A. B. Skopenkov},
     title = {{\CYRP}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrery}{\cyre} {\cyrd}{\cyro}{\cyrk}{\cyra}{\cyrz}{\cyra}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyro}{\cyrc}{\cyre}{\cyrn}{\cyro}{\cyrk} {\cyrch}{\cyri}{\cyrs}{\cyre}{\cyrl} {{\CYRR}{\cyra}{\cyrm}{\cyrs}{\cyre}{\cyrya}} {\cyri} {\cyru}{\cyrk}{\cyrl}{\cyro}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {151--156},
     year = {2023},
     volume = {Ser. 3, 30},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2023_3_30_a11/}
}