@article{UZKU_1946_106_2_a1, author = {K. P. Persidskii}, title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrd}{\cyro}{\cyrk}{\cyra}{\cyrz}{\cyra}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrs}{\cyrt}{\cyrv}{\cyre} {\cyrs}{\cyru}{\cyrshch}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyrya} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrd}{\cyri}{\cyrf}{\cyrf}{\cyre}{\cyrr}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt}}, journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki}, pages = {15--22}, publisher = {mathdoc}, volume = {106}, number = {2}, year = {1946}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/UZKU_1946_106_2_a1/} }