@article{MP_1938_a3,
     author = {S. I. Zetel},
     title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrs}{\cyrp}{\cyro}{\cyrs}{\cyro}{\cyrb}{\cyre} {\cyro}{\cyrt}{\cyrery}{\cyrs}{\cyrk}{\cyra}{\cyrn}{\cyri}{\cyrya} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {{\CYRF}{\cyre}{\cyrishrt}{\cyre}{\cyrr}{\cyrb}{\cyra}{\cyrh}{\cyra}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {10--13},
     publisher = {mathdoc},
     year = {1938},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1938_a3/}
}