Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1991_321_4_a8, author = {L. G. Mikhailov}, title = {A property of singular differential equations}, journal = {Doklady Akademii Nauk}, pages = {681--686}, publisher = {mathdoc}, volume = {321}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a8/} }
L. G. Mikhailov. A property of singular differential equations. Doklady Akademii Nauk, Tome 321 (1991) no. 4, pp. 681-686. http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a8/