%0 Journal Article %A Anderson, Douglas R. %A Tisdell, Christopher C. %T Third-order nonlocal problems with sign-changing nonlinearity on time scales %J Electronic Journal of Differential Equations %D 2007 %V 2007 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a51/ %G en %F EJDE_2007__2007__a51