TY - JOUR AU - Tunç, Ercan TI - Instability of solutions of certain nonlinear vector differential equations of third order JO - Electronic Journal of Differential Equations PY - 2005 VL - 2005 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a292/ LA - en ID - EJDE_2005__2005__a292 ER -