@article{Qin2018,
author = {Qin, M. and Falkingham, J. and Padmadas, S.},
title= {Unpacking the differential impact of family planning policies in china: Analysis of parity progression ratios from retrospective birth history data, 1971–2005},
year = {2018},
doi = {10.1017/S002193201700061X},
volume = {50},
number = {6},
pages = {800--822},
}