Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1973_9_8_a10, author = {N. A. Sidorov}, title = {The branching of the solutions of differential equations with a degeneracy}, journal = {Differencialʹnye uravneni\^a}, pages = {1464--1481}, publisher = {mathdoc}, volume = {9}, number = {8}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_8_a10/} }
N. A. Sidorov. The branching of the solutions of differential equations with a degeneracy. Differencialʹnye uravneniâ, Tome 9 (1973) no. 8, pp. 1464-1481. http://geodesic.mathdoc.fr/item/DE_1973_9_8_a10/