@article{Liang2004,
author = {Liang, Zai and Ma, Zhongdong},
title= {China's Floating Population: New Evidence from the 2000 Census},
year = {2004},
doi = {10.1111/j.1728-4457.2004.00024.x},
journal = {Population and Development Review},
volume = {30},
number = {3},
pages = {467--488},
}