@article{Bell2015a,
author = {Bell, M. and Charles-Edwards, E. and Ueffing, P. and Stillwell, J. and Kupiszewski, M. and Kupiszewska, D.},
title= {Internal migration and development: Comparing migration intensities around the world},
year = {2015a},
doi = {10.1111/j.1728-4457.2015.00025.x},
volume = {41},
number = {1},
pages = {33--58},
}