@article{Cai2011,
author = {Cai, Y.},
title= {United Nations Population Projection still overestimated China’s fertility level},
year = {2011},
URL = {http://big5.xinhuanet.com/gate/big5/www.cnstock.com/index/gdbb/201105/1317694.htm (September 2011, in Chinese)},
journal = {First Caijing Daily},
number = {23 May 2011},
}