@article{DE_1967_3_2_a18,
     author = {A. R. Shakun},
     title = {{\CYRN}{\cyro}{\cyrv}{\cyrery}{\cyre} {\cyrk}{\cyrn}{\cyri}{\cyrg}{\cyri}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {354--355},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_2_a18/}
}