@article{MS_1952__72_1_a5,
     author = {{\CYRL}.{\CYRA}. {\CYRS}{\cyrk}{\cyro}{\cyrr}{\cyrn}{\cyrya}{\cyrk}{\cyro}{\cyrv}},
     title = {{\CYRK}{\cyro}{\cyrn}{\cyrf}{\cyri}{\cyrg}{\cyru}{\cyrr}{\cyra}{\cyrc}{\cyri}{\cyrya} ${D_9}$},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {73--78},
     publisher = {mathdoc},
     volume = {72},
     number = {1},
     year = {1952},
     zbl = {0046.38206},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1952__72_1_a5/}
}