@article{Clark2017,
author = {Clark, S. and Koski, A. and Smith-Greenaway, E. },
title= {Recent trends in premarital fertility across sub-Saharan Africa},
year = {2017},
doi = {10.1111/sifp.12013},
journal = {Studies in Family Planning },
volume = {48},
number = {1},
pages = {3--22},
}