@article{GDZPPN002536927,
title = {Oscillating solutions of linear differential equations.},
journal = {Publications de l'Institut Math\'ematique [Elektronische Ressource]},
volume = {35},
year = {1977},
pages = {135-138},
zbl = {0383.34021},
url = {http://dml.mathdoc.fr/item/GDZPPN002536927}
}
Kocic, V.Lj.; Keckic, J.D. Oscillating solutions of linear differential equations.. Publications de l'Institut Mathématique [Elektronische Ressource], Tome 35 (1977) pp. 135-138. http://gdmltest.u-ga.fr/item/GDZPPN002536927/