@article{UZKU_1931_91_4_a7,
     author = {N. F. Grechushnikova},
     title = {{\CYRT}{\cyra}{\cyrb}{\cyrl}{\cyri}{\cyrc}{\cyrery} {\cyrn}{\cyro}{\cyrm}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrm}{\cyrm} {\cyri}{\cyrz} {\cyrv}{\cyrery}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {55--61},
     year = {1931},
     volume = {91},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_1931_91_4_a7/}
}