@article{1206133874,
author = {Trench, William F.},
title = {Asymptotic theory of perturbed general disconjugate equations},
journal = {Hiroshima Math. J.},
volume = {12},
number = {3},
year = {1982},
pages = { 43-58},
language = {en},
url = {http://dml.mathdoc.fr/item/1206133874}
}
Trench, William F. Asymptotic theory of perturbed general disconjugate equations. Hiroshima Math. J., Tome 12 (1982) no. 3, pp. 43-58. http://gdmltest.u-ga.fr/item/1206133874/