TY  - JOUR
AU  - F. Kappel
AU  - H.T. Banks
TI  - Transformation semigroups and  L1-approximation for size structured population models.
JO  - Semigroup forum
PY  - 1989
SP  - 141
EP  - 156
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1989__38_2_134950/
ID  - SF_1989__38_2_134950
ER  -