TY - JOUR AU - Nguyen, Thanh Lan TI - Periodicity of mild solutions to higher order differential equations in Banach spaces JO - Electronic Journal of Differential Equations PY - 2004 VL - 2004 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a184/ LA - en ID - EJDE_2004__2004__a184 ER -