@misc{MP_1937_a12,
     title = {{\CYRM}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrishrt} {\cyrk}{\cyrr}{\cyru}{\cyrzh}{\cyro}{\cyrk} 7-{\cyrh} {\cyrk}{\cyrl}{\cyra}{\cyrs}{\cyrs}{\cyro}{\cyrv}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {54},
     publisher = {mathdoc},
     year = {1937},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1937_a12/}
}