%0 Journal Article %A Buşe, Constantin %A Jitianu, Oprea %T A new theorem on exponential stability of periodic evolution families on Banach spaces %J Electronic journal of differential equations %D 2003 %V 2003 %U http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a117/ %G en %F EJDE_2003__2003__a117