%0 Journal Article %A Hassan, Taher S. %T Interval Oscillation for Second Order Nonlinear Differential Equations with a Damping Term %J Serdica Mathematical Journal %D 2008 %P 715-732 %V 34 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2008_34_4_a1/ %G en %F SMJ2_2008_34_4_a1