%0 Journal Article %A Greguš, Michal %T On the oscillatory behaviour of certain third order nonlinear differential equation %J Archivum mathematicum %D 1992 %P 221-228 %V 28 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1992__28_3-4_a10/ %G en %F ARM_1992__28_3-4_a10