TY  - GEN
AU  - Banks, H. T
AU  - Kappel, F
TI  - Transformation semigroups amd L 1-approximation for structured population models: Preprint
PY  - 1988///
CY  - Graz
PB  - Institute fur Mathematik Univ. Graz
N1  - Cartea este multigrafiata; Contine bibliogr
ER  -