@article{DAN_1972_206_6_a23,
     author = {L. S. Tsybakova},
     title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk} {\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {``{\CYRO}} {\cyrk}{\cyro}{\cyrl}{\cyre}{\cyrb}{\cyra}{\cyrn}{\cyri}{\cyrya}{\cyrh} {\cyrv} {\cyro}{\cyrt}{\cyrk}{\cyrr}{\cyrery}{\cyrt}{\cyrery}{\cyrh} {\cyrr}{\cyre}{\cyrz}{\cyro}{\cyrn}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyra}{\cyrh}'' {({\CYRD}{\CYRA}{\CYRN},} {\cyrt}.~205, {\No~1,} 1972~{\cyrg}.)},
     journal = {Doklady Akademii Nauk},
     pages = {775},
     publisher = {mathdoc},
     volume = {206},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_206_6_a23/}
}