%0 Journal Article
%A Hermann Sohr
%A Jan Prüss
%T On Operators with Bounded Imaginary Powers in Banach Spaces.
%J Mathematische Zeitschrift
%D 1990
%P 429-452
%V 203
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1990__203_3_174139/
%F MZ_1990__203_3_174139