TY - JOUR A1 - Cohen, J.E. A1 - Kravdal, Ø A1 - Keilman, N. T1 - Childbearing impeded education more than education impeded childbearing among Norwegian women Y1 - 2011 DO - 10.1073/pnas.1107993108 VL - 108 IS - 29 ER -