@article{UZKU_1949_109_3_a11,
     author = {A. N. Ivanov},
     title = {{\CYRP}{\cyrr}{\cyro}{\cyrb}{\cyrl}{\cyre}{\cyrm}{\cyra} {\cyrg}{\cyre}{\cyrn}{\cyre}{\cyrz}{\cyri}{\cyrs}{\cyra} {\cyrk}{\cyro}{\cyrn}{\cyrg}{\cyrl}{\cyro}{\cyrm}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrv}{\cyro}-{\cyrb}{\cyrr}{\cyre}{\cyrk}{\cyrch}{\cyri}{\cyre}{\cyrv}{\cyro}{\cyrishrt} {\cyrt}{\cyro}{\cyrl}{\cyrshch}{\cyri} {{\CYRP}{\cyru}{\cyrch}{\cyre}{\cyrzh}{\cyrs}{\cyrk}{\cyro}-{\CYRG}{\cyro}{\cyrr}{\cyro}{\cyrd}{\cyre}{\cyrc}{\cyrk}{\cyro}{\cyrg}{\cyro}} {{\CYRP}{\cyro}{\cyrv}{\cyro}{\cyrl}{\cyrzh}{\cyrsftsn}{\cyrya}}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {123--155},
     publisher = {mathdoc},
     volume = {109},
     number = {3},
     year = {1949},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_1949_109_3_a11/}
}