@misc{MP_1957_a25,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {\cyrp}{\cyro} {\cyrv}{\cyrery}{\cyrs}{\cyrsh}{\cyre}{\cyrishrt} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrk}{\cyre}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {270--274},
     publisher = {mathdoc},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1957_a25/}
}