%0 Journal Article %A BartuĊĦek, Miroslav %T On proper oscillatory solutions of the nonlinear differential equations of the $n$-th order %J Archivum mathematicum %D 1988 %P 89-98 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1988__24_2_a6/ %G en %F ARM_1988__24_2_a6