@misc{MP_1934_1_1_a9,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {65--67},
     year = {1934},
     volume = {Ser. 1, 1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1934_1_1_a9/}
}