@article{GDZPPN002363100,
title = {Oscillation Results for Some Linear Differential Equations.},
journal = {Mathematica Scandinavica},
volume = {77},
year = {1995},
pages = {209-224},
zbl = {0853.34005},
url = {http://dml.mathdoc.fr/item/GDZPPN002363100}
}
Wang, S.; Chiang, Y.-M.; Laine, I. Oscillation Results for Some Linear Differential Equations.. Mathematica Scandinavica, Tome 77 (1995) pp. 209-224. http://gdmltest.u-ga.fr/item/GDZPPN002363100/