@article{Ravallion2007,
author = {Ravallion, M. and Chen, S. and Sangraula, P. },
title= {New evidence on the urbanization of global poverty},
year = {2007},
doi = {10.1111/j.1728-4457.2007.00193.x},
volume = {33},
number = {4},
pages = {667--701},
}