Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1958_121_1_a4, author = {V. M. Volosov}, title = {Oscillation equations with slowly variable parameters}, journal = {Doklady Akademii Nauk}, pages = {22--25}, publisher = {mathdoc}, volume = {121}, number = {1}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_121_1_a4/} }
V. M. Volosov. Oscillation equations with slowly variable parameters. Doklady Akademii Nauk, Tome 121 (1958) no. 1, pp. 22-25. http://geodesic.mathdoc.fr/item/DAN_1958_121_1_a4/