TY - CHAP A1 - Willekens, F. T1 - Life course: Models and analysis Y1 - 1999 DO - 10.1007/978-94-011-4389-9_2 A3 - van Wissen, L.J.G. A3 - Dykstra, P.A. T2 - Population issues: An interdisciplinary focus CY - New York PB - Plenum Press ER -