Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1958_119_3_a13, author = {V. Solonnikov}, title = {Linear differential equations with a small parameter in the highest derivative term}, journal = {Doklady Akademii Nauk}, pages = {454--457}, publisher = {mathdoc}, volume = {119}, number = {3}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_119_3_a13/} }
V. Solonnikov. Linear differential equations with a small parameter in the highest derivative term. Doklady Akademii Nauk, Tome 119 (1958) no. 3, pp. 454-457. http://geodesic.mathdoc.fr/item/DAN_1958_119_3_a13/