@article{MP_2021_3_27_a12,
     author = {A. Ya. Kanel-Belov},
     title = {{\CYRO} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra}{\cyrh} {\cyrn}{\cyra} {\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyro}{\cyre} {\cyrv}{\cyra}{\cyrr}{\cyrsftsn}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyre}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {175--181},
     year = {2021},
     volume = {Ser. 3, 27},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2021_3_27_a12/}
}