@article{MP_1936_1_5_a1,
     author = {S. I. Zetel},
     title = {{\CYRS}{\cyrv}{\cyro}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyrt}{\cyrr}{\cyre}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyra}, {\cyrs}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrn}{\cyrery} {\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyro}{\cyrs}{\cyrt}{\cyra}{\cyrv}{\cyrl}{\cyrya}{\cyryu}{\cyrt} {\cyra}{\cyrr}{\cyri}{\cyrf}{\cyrm}{\cyre}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyru}{\cyryu} {\cyrp}{\cyrr}{\cyro}{\cyrg}{\cyrr}{\cyre}{\cyrs}{\cyrs}{\cyri}{\cyryu}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {12--21},
     year = {1936},
     volume = {Ser. 1, 5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1936_1_5_a1/}
}