%0 Journal Article %A Mingarelli, Angelo B. %A Sadarangani, Kishin %T Asymptotic solutions of forced nonlinear second order differential equations and their extensions %J Electronic Journal of Differential Equations %D 2007 %V 2007 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a132/ %G en %F EJDE_2007__2007__a132