@article{1077467631,
author = {Lax, Peter D.},
title = {Asymptotic solutions of oscillatory initial value problems},
journal = {Duke Math. J.},
volume = {24},
number = {1},
year = {1957},
pages = { 627-646},
language = {en},
url = {http://dml.mathdoc.fr/item/1077467631}
}
Lax, Peter D. Asymptotic solutions of oscillatory initial value problems. Duke Math. J., Tome 24 (1957) no. 1, pp. 627-646. http://gdmltest.u-ga.fr/item/1077467631/