@article{DAN_1968_182_3_a20,
     author = {R. L. Frum-Ketkov},
     title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk} {\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {``{\CYRO}{\cyrb}} {\cyro}{\cyrt}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya}{\cyrh} {\cyrv} {\cyrs}{\cyrf}{\cyre}{\cyrr}{\cyru} {\cyrb}{\cyra}{\cyrn}{\cyra}{\cyrh}{\cyro}{\cyrv}{\cyra} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra}'' {({\CYRD}{\CYRA}{\CYRN},} {\cyrt}.~175, {\No~6,} 1967~{\cyrg}.)},
     journal = {Doklady Akademii Nauk},
     pages = {8},
     publisher = {mathdoc},
     volume = {182},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_3_a20/}
}