@article{MP_1937_1_11_a0,
     author = {S. I. Zetel},
     title = {{\CYRO}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {{\CYRSH}{\cyrl}{\cyre}{\cyrm}{\cyri}{\cyrl}{\cyrsftsn}{\cyrh}{\cyra}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {3--6},
     year = {1937},
     volume = {Ser. 1, 11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1937_1_11_a0/}
}