Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1964_156_6_a7, author = {A. Yu. Levin}, title = {On the distribution of zeros of solutions of a linear differential equation}, journal = {Doklady Akademii Nauk}, pages = {1281--1284}, publisher = {mathdoc}, volume = {156}, number = {6}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_156_6_a7/} }
A. Yu. Levin. On the distribution of zeros of solutions of a linear differential equation. Doklady Akademii Nauk, Tome 156 (1964) no. 6, pp. 1281-1284. http://geodesic.mathdoc.fr/item/DAN_1964_156_6_a7/