@article{MP_1935_1_2_a9,
     author = {V. V. Dobrovolskii},
     title = {{\CYRP}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrd}{\cyri}{\cyra}{\cyrg}{\cyrr}{\cyra}{\cyrm}{\cyrm}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {47--55},
     year = {1935},
     volume = {Ser. 1, 2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1935_1_2_a9/}
}