TY - JOUR A1 - Aarssen, L.W. T1 - Why is fertility lower in wealthier countries? The role of relaxed fertility-selection Y1 - 2005 DO - 10.1111/j.1728-4457.2005.00054.x JF - Population and Development Review VL - 31 IS - 1 SP - 113 EP - -126 ER -