@article{GDZPPN00203476X,
title = {On second order sublinear oscillation.},
journal = {Aequationes mathematicae},
volume = {27},
year = {1984},
pages = {242-254},
zbl = {0545.34026},
url = {http://dml.mathdoc.fr/item/GDZPPN00203476X}
}
Philos, Ch. G. On second order sublinear oscillation.. Aequationes mathematicae, Tome 27 (1984) pp. 242-254. http://gdmltest.u-ga.fr/item/GDZPPN00203476X/