@article{MS_1943__54_1_a10,
     author = {A.A. {\CYRB}{\cyru}{\cyrh}{\cyrsh}{\cyrt}{\cyra}{\cyrb}},
     title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrs}{\cyro}{\cyro}{\cyrt}{\cyrn}{\cyro}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrd}{\cyrl}{\cyrya} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyri} $\ensuremath{\pi}(x)$, {\cyrv}{\cyrery}{\cyrr}{\cyra}{\cyrzh}{\cyra}{\cyryu}{\cyrshch}{\cyre}{\cyrishrt} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyro} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrery}{\cyrh} {\cyrch}{\cyri}{\cyrs}{\cyre}{\cyrl}, {\cyrn}{\cyre} {\cyrp}{\cyrr}{\cyre}{\cyrv}{\cyro}{\cyrs}{\cyrh}{\cyro}{\cyrd}{\cyrya}{\cyrshch}{\cyri}{\cyrh} $x$},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {152--160},
     publisher = {mathdoc},
     volume = {54},
     number = {1},
     year = {1943},
     zbl = {0061.08104},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1943__54_1_a10/}
}