Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{DE_1969_5_9_a0, title = {{\CYRE}{\cyrv}{\cyrg}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {{\CYRA}{\cyrl}{\cyre}{\cyrk}{\cyrs}{\cyre}{\cyre}{\cyrv}{\cyri}{\cyrch}} {{\CYRB}{\cyra}{\cyrr}{\cyrb}{\cyra}{\cyrsh}{\cyri}{\cyrn}}}, journal = {Differencialʹnye uravneni\^a}, pages = {1547--1549}, publisher = {mathdoc}, volume = {5}, number = {9}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_9_a0/} }
Евгений Алексеевич Барбашин. Differencialʹnye uravneniâ, Tome 5 (1969) no. 9, pp. 1547-1549. http://geodesic.mathdoc.fr/item/DE_1969_5_9_a0/