@article{Kaufman1989,
author = {Kaufman, J. and Zhang, Z. and Qiao, Z. and Zhang, Y.},
title= {Family planning policy and practice in China: A study of four rural counties},
year = {1989},
doi = {10.2307/1972596},
journal = {Population and Development Review},
volume = {15},
number = {4},
pages = {707--729},
}