@article{UZKU_1931_91_4_a9,
     author = {P. A. Shirokov},
     title = {{\CYRG}{\cyre}{\cyro}{\cyrd}{\cyre}{\cyrz}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyre} {\cyrv}{\cyrr}{\cyru}{\cyrch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrk}{\cyrr}{\cyri}{\cyrv}{\cyro}{\cyrishrt}, {\cyrp}{\cyrr}{\cyri}{\cyrn}{\cyra}{\cyrd}{\cyrl}{\cyre}{\cyrzh}{\cyra}{\cyrshch}{\cyre}{\cyrishrt} {\cyrk}~{\cyrn}{\cyre}{\cyrg}{\cyro}{\cyrl}{\cyro}{\cyrn}{\cyro}{\cyrm}{\cyrn}{\cyro}{\cyrm}{\cyru} {\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyru}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {65--69},
     year = {1931},
     volume = {91},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_1931_91_4_a9/}
}