@misc{MO_2001_1_a5, title = {{\CYRS}{\cyro}{\cyrd}{\cyre}{\cyrr}{\cyrzh}{\cyra}{\cyrn}{\cyri}{\cyre} {\cyrp}{\cyrr}{\cyri}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya} {{\textquotedblleft}{\CYRO}{\cyrb}{\cyro}{\cyrz}{\cyrr}{\cyre}{\cyrn}{\cyri}{\cyre}} {Z"} ({\cyrp}{\cyrr}{\cyro}{\cyrd}{\cyro}{\cyrl}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyre})}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {86}, year = {2001}, number = {1}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2001_1_a5/} }