@article{DAN_1966_169_3_a21,
     author = {I. A. Ibragimov},
     title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk}~{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {``{\CYRO}} {\cyrs}{\cyrk}{\cyro}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrs}{\cyrh}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrk}~{\cyrn}{\cyro}{\cyrr}{\cyrm}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrm}{\cyru} {\cyrr}{\cyra}{\cyrs}{\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyryu}'' {({\CYRD}{\CYRA}{\CYRN},} {\cyrt}.~161, {\No~6,} 1965~{\cyrg}.)},
     journal = {Doklady Akademii Nauk},
     pages = {8},
     publisher = {mathdoc},
     volume = {169},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_169_3_a21/}
}