@article{DAN_1965_160_5_a47,
     author = {A. N. Tikhonov},
     title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk}~{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {{\textquotedblleft}{\CYRO}{\cyrb}} {\cyru}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyrery}{\cyrh} {\cyrm}{\cyre}{\cyrt}{\cyro}{\cyrd}{\cyra}{\cyrh} {\cyrs}{\cyru}{\cyrm}{\cyrm}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyrya} {\cyrr}{\cyrya}{\cyrd}{\cyro}{\cyrv} {{\CYRF}{\cyru}{\cyrr}{\cyrsftsn}{\cyre}{\textquotedblright}} {({\CYRD}{\CYRA}{\CYRN},} {\cyrt}.~156, ~2, 1964~{\cyrg}.)},
     journal = {Doklady Akademii Nauk},
     pages = {982},
     year = {1965},
     volume = {160},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_5_a47/}
}