TY  - CHAP
A1  - Willekens, F.J.
T1  - The life-course approach: Models and analysis
Y1  - 1999
A3  - Wissen, L. J. G.
A3  - Dykstra, P.
T2  - Population issues: An interdisciplinary focus
CY  - Dordrecht
PB  - Kluwer Academic Publishers

ER  -