%0 Journal Article
%A F. Kappel
%A H.T. Banks
%T Transformation semigroups and  L1-approximation for size structured population models.
%J Semigroup forum
%D 1989
%P 141-156
%V 38
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1989__38_2_134950/
%F SF_1989__38_2_134950