%0 Journal Article
%A F. Andreu
%A J. Martínez
%A J.M. Mazón
%T A spectral mapping theorem for perturbed strongly continuous semigroups.
%J Mathematische Annalen
%D 1991
%P 453-462
%V 291
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164878/
%F MAN_1991__291_1_164878