TY - JOUR AU - Mingarelli, Angelo B. AU - Sadarangani, Kishin TI - Asymptotic solutions of forced nonlinear second order differential equations and their extensions JO - Electronic Journal of Differential Equations PY - 2007 VL - 2007 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a232/ LA - en ID - EJDE_2007__2007__a232 ER -