TY - JOUR A1 - Moultrie, T. A1 - Sayi, T.S. A1 - Timæus, I.M. T1 - Birth intervals, postponement, and fertility decline in Africa: A new type of transition? Y1 - 2012 DO - 10.1080/00324728.2012.701660 JF - Population Studies VL - 66 IS - 3 ER -