@article{EJDE_2002__2002__a34,
     author = {Bu\c{s}e,  Constantin},
     title = {A spectral mapping theorem for evolution semigroups on asymptotically almost periodic functions defined on the half line},
     journal = {Electronic journal of differential equations},
     year = {2002},
     volume = {2002},
     zbl = {1010.47027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a34/}
}