@misc{DE_1966_2_3_a18,
     title = {{\CYRN}{\cyro}{\cyrv}{\cyrery}{\cyre} {\cyrk}{\cyrn}{\cyri}{\cyrg}{\cyri}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {435},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1966_2_3_a18/}
}