@article{DAN_1962_146_1_a43,
     author = {P. P. Zabreiko and M. A. Krasnosel'skii},
     title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk}~{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {``{\CYRO}~{\cyrv}{\cyrery}{\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyri}} {\cyri}{\cyrn}{\cyrd}{\cyre}{\cyrk}{\cyrs}{\cyra} {\cyri}{\cyrz}{\cyro}{\cyrl}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyrn}{\cyro}{\cyrishrt} {\cyrn}{\cyre}{\cyrp}{\cyro}{\cyrd}{\cyrv}{\cyri}{\cyrzh}{\cyrn}{\cyro}{\cyrishrt} {\cyrt}{\cyro}{\cyrch}{\cyrk}{\cyri} {\cyrv}{\cyrp}{\cyro}{\cyrl}{\cyrn}{\cyre} 
},
     journal = {Doklady Akademii Nauk},
     pages = {8},
     publisher = {mathdoc},
     volume = {146},
     number = {1},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_1_a43/}
}