@misc{DE_1977_13_11_a0,
     title = {250-{\cyrl}{\cyre}{\cyrt}{\cyrn}{\cyri}{\cyrishrt} {\cyryu}{\cyrb}{\cyri}{\cyrl}{\cyre}{\cyrishrt} {{\CYRA}{\cyrk}{\cyra}{\cyrd}{\cyre}{\cyrm}{\cyri}{\cyri}} {\cyrn}{\cyra}{\cyru}{\cyrk} {{\CYRS}{\CYRS}{\CYRS}{\CYRR}}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1914},
     publisher = {mathdoc},
     volume = {13},
     number = {11},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_11_a0/}
}