@article{MP_2020_a9, author = {I. R. Vysotsky}, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra} {\cyrk}{\cyro}{\cyrl}{\cyrl}{\cyre}{\cyrk}{\cyrc}{\cyri}{\cyro}{\cyrn}{\cyre}{\cyrr}{\cyra}}, journal = {Matematicheskoe Prosveshchenie}, pages = {198--220}, publisher = {mathdoc}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2020_a9/} }