@article{Zeng1993,
author = {Zeng, Y. and Ping, T. and Baochang, G. and Yi, X. and Bohua, L. and Yongping, L.},
title= {Causes and implications of the increase in China's reported sex ratio at birth},
year = {1993},
doi = {10.2307/2938438},
journal = {Population and Development Review},
volume = {19},
number = {2},
pages = {283--302},
}