TY - JOUR A1 - Kaplan, H. A1 - Gurven, M. T1 - Top-down and bottom-up research in biodemography Y1 - 2008 DO - 10.4054/DemRes.2008.19.44 JF - Demographic Research VL - 19 IS - 44 SP - 1587 EP - -1602 ER -