%0 Journal Article %A Khan, Rahmat Ali %T Existence and approximation of solutions of second order nonlinear Neumann problems %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a85/ %G en %F EJDE_2005__2005__a85