%0 Journal Article
%A Charles J. K. Batty
%A Zdzisław Brzeźniak
%A David D. Greenfield
%T A quantitative asymptotic theorem for contraction semigroups with countable unitary spectrum
%J Studia Mathematica
%D 1996
%P 167-183
%V 121
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4064/sm_1996_121_2_1_167_183/
%R 10.4064/sm_1996_121_2_1_167_183
%G en
%F 10_4064_sm_1996_121_2_1_167_183