@article{UZKU_1955_115_12_a1, author = {L. V. Popov and R. V. Sokolova}, title = {{\CYRK} {\cyrm}{\cyre}{\cyrt}{\cyro}{\cyrd}{\cyri}{\cyrk}{\cyre} {\cyrs}{\cyrp}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyro}{\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyru}{\cyrg}{\cyrl}{\cyre}{\cyrr}{\cyro}{\cyrd}{\cyra} {\cyrv}~{\cyrs}{\cyrt}{\cyra}{\cyrl}{\cyrya}{\cyrh}}, journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki}, pages = {25--39}, publisher = {mathdoc}, volume = {115}, number = {12}, year = {1955}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/UZKU_1955_115_12_a1/} }