@article{Zhao2018,
author = {Zhao, Z. and Zhang, G.},
title= {Socioeconomic factors have been the major driving force of China’s fertility changes since the mid-1990s},
year = {2018},
doi = {10.1007/s13524-018-0662-y},
volume = {55},
number = {2},
pages = {733--742},
}