@article{MASLO_1984_34_4_a10,
author = {Regenda, J\'an},
title = {Oscillation criteria for differential equation $y\sp {(4)}+P(t)y''+R(t)y'+Q(t)y=0$},
journal = {Mathematica slovaca},
pages = {419--425},
year = {1984},
volume = {34},
number = {4},
mrnumber = {775251},
zbl = {0598.34028},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1984_34_4_a10/}
}
Regenda, Ján. Oscillation criteria for differential equation $y\sp {(4)}+P(t)y''+R(t)y'+Q(t)y=0$. Mathematica slovaca, Tome 34 (1984) no. 4, pp. 419-425. http://geodesic.mathdoc.fr/item/MASLO_1984_34_4_a10/
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