@article{Lutz2002,
author = {Lutz, W. and Qiang, R.},
title= {Determinants of human population growth},
year = {2002},
doi = {10.1098/rstb.2002.1121},
journal = {Philosophical Transactions of the Royal Society B},
volume = {357},
number = {1425},
pages = {1197--1210},
}