TY - JOUR A1 - Hawkes, K. A1 - O’Connell, J.F. A1 - Blurton Jones, N.G. T1 - Hadza Women’s Time Allocation, Offspring Provisioning, and the Evolution of Long Postmenopausal Life Spans Y1 - 1997 DO - 10.1086/204646 JF - Current Anthropology VL - 38 IS - 4 ER -