%0 Journal Article %A Tunç, Ercan %T Instability of solutions of certain nonlinear vector differential equations of third order %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a192/ %G en %F EJDE_2005__2005__a192