TY - CHAP A1 - Beets, G. T1 - Does the Increasing Age at First Birth Lead to Increases in Involuntary Childlessness? Y1 - 1996 A3 - Aeep, Eaps, Iussp, and Vieps T2 - Evolution or Revolution in European Population. European Population Conference 1995 CY - Milan PB - FrancoAngeli SP - 15 EP - -29 T3 - Volume II ER -