@article{MP_1937_1_11_a7,
     author = {M. K. Grebencha},
     title = {{\CYRS}{\cyrv}{\cyro}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyrt}{\cyro}{\cyrch}{\cyrk}{\cyri} {\cyrn}{\cyra}{\cyri}{\cyrm}{\cyre}{\cyrn}{\cyrsftsn}{\cyrsh}{\cyre}{\cyrg}{\cyro} {\cyrr}{\cyra}{\cyrs}{\cyrs}{\cyrt}{\cyro}{\cyrya}{\cyrn}{\cyri}{\cyrya} {\cyro}{\cyrt} {\cyrch}{\cyre}{\cyrt}{\cyrery}{\cyrr}{\cyre}{\cyrh} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {29--34},
     year = {1937},
     volume = {Ser. 1, 11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1937_1_11_a7/}
}