%0 Journal Article %A Grace, Said R. %A Lalli, Bikkar S. %T Oscillation theorems for nonlinear second order differential equations with a damping term %J Commentationes Mathematicae Universitatis Carolinae %D 1989 %P 691-697 %V 30 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a8/ %G en %F CMUC_1989__30_4_a8