%0 Journal Article %A Orucoglu, Kamil %T A new Green function concept for fourth-order differential equations %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a291/ %G en %F EJDE_2005__2005__a291