@article{MP_2020_3_26_a10,
     author = {G. B. Shabat},
     title = {{\CYRO} {\cyrp}{\cyrr}{\cyre}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyri} {{\CYRG}{\cyra}{\cyru}{\cyrs}{\cyrs}{\cyra}{\textendash}{\CYRL}{\cyra}{\cyrn}{\cyrd}{\cyre}{\cyrn}{\cyra}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {221--248},
     year = {2020},
     volume = {Ser. 3, 26},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2020_3_26_a10/}
}