Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1968_4_6_a3, author = {S. G. Kondratenya}, title = {Mobile singular points of solutions of certain ordinary differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {991--999}, publisher = {mathdoc}, volume = {4}, number = {6}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_6_a3/} }
S. G. Kondratenya. Mobile singular points of solutions of certain ordinary differential equations. Differencialʹnye uravneniâ, Tome 4 (1968) no. 6, pp. 991-999. http://geodesic.mathdoc.fr/item/DE_1968_4_6_a3/