@article{DE_1967_3_7_a15,
     author = {E. A. Ivanov},
     title = {{\CYRR}{\cyra}{\cyrs}{\cyrs}{\cyre}{\cyrya}{\cyrn}{\cyri}{\cyre} {\cyrn}{\cyra}{\cyrk}{\cyrl}{\cyro}{\cyrn}{\cyrn}{\cyro} {\cyrp}{\cyra}{\cyrd}{\cyra}{\cyryu}{\cyrshch}{\cyre}{\cyrishrt} {\cyrp}{\cyrl}{\cyro}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrerev}{\cyrl}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyro}{\cyrm}{\cyra}{\cyrg}{\cyrn}{\cyri}{\cyrt}{\cyrn}{\cyro}{\cyrishrt} {\cyrv}{\cyro}{\cyrl}{\cyrn}{\cyrery} {\cyrn}{\cyra} {\cyrd}{\cyrv}{\cyru}{\cyrh} {\cyrs}{\cyro}{\cyro}{\cyrs}{\cyrn}{\cyrery}{\cyrh} {\cyrk}{\cyrr}{\cyru}{\cyrg}{\cyro}{\cyrv}{\cyrery}{\cyrh} {\cyrd}{\cyri}{\cyrs}{\cyrk}{\cyra}{\cyrh}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1180--1194},
     publisher = {mathdoc},
     volume = {3},
     number = {7},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_7_a15/}
}