@article{MP_1935_a15,
     author = {M. M. Ivanchenko},
     title = {{\CYRK}{\cyrr}{\cyri}{\cyrv}{\cyrery}{\cyre}, {\cyrs}{\cyrv}{\cyrya}{\cyrz}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrs}{\cyro} {\cyrv}{\cyrz}{\cyra}{\cyri}{\cyrm}{\cyrn}{\cyrery}{\cyrm}{\cyri} {\cyro}{\cyrk}{\cyrr}{\cyru}{\cyrzh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrya}{\cyrm}{\cyri}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {92--97},
     publisher = {mathdoc},
     year = {1935},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1935_a15/}
}