@article{MS_1952__73_3_a12,
     author = {O.A. {\CYRO}{\cyrl}{\cyre}{\cyrishrt}{\cyrn}{\cyri}{\cyrk} and {\CYRA}.{\CYRI}. {\CYRZH}{\cyri}{\cyrzh}{\cyri}{\cyrn}{\cyra}},
     title = {{\CYRO} {\cyrk}{\cyrr}{\cyra}{\cyre}{\cyrv}{\cyro}{\cyrishrt} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyre} {\cyrd}{\cyrl}{\cyrya} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya} $\varepsilon y^{\prime \prime }=F(x,y,y^{\prime })$ {\cyrp}{\cyrr}{\cyri} {\cyrm}{\cyra}{\cyrl}{\cyrery}{\cyrh} $\varepsilon $},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {709--718},
     publisher = {mathdoc},
     volume = {73},
     number = {3},
     year = {1952},
     zbl = {0047.32803},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1952__73_3_a12/}
}