@article{MP_1935_1_2_a0,
     author = {P. I. Sapunov},
     title = {{\CYRN}{\cyre}{\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyrery}{\cyre} {\cyru}{\cyrp}{\cyrr}{\cyro}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrp}{\cyrr}{\cyri} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyri}{\cyrr}{\cyrr}{\cyra}{\cyrc}{\cyri}{\cyro}{\cyrn}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt}, {\cyrs}{\cyro}{\cyrd}{\cyre}{\cyrr}{\cyrzh}{\cyra}{\cyrshch}{\cyri}{\cyrh} {\cyrk}{\cyrv}{\cyra}{\cyrd}{\cyrr}{\cyra}{\cyrt}{\cyrn}{\cyrery}{\cyre} {\cyrr}{\cyra}{\cyrd}{\cyri}{\cyrk}{\cyra}{\cyrl}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {3--8},
     year = {1935},
     volume = {Ser. 1, 2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1935_1_2_a0/}
}