@article{1077492491, author = {Levinson, N.}, title = {The growth of the solutions of a differential equation}, journal = {Duke Math. J.}, volume = {8}, number = {1}, year = {1941}, pages = { 1-10}, language = {en}, url = {http://dml.mathdoc.fr/item/1077492491} }
Levinson, N. The growth of the solutions of a differential equation. Duke Math. J., Tome 8 (1941) no. 1, pp. 1-10. http://gdmltest.u-ga.fr/item/1077492491/