@inbook{United Nations2012,
author = {United Nations},
title= {World urbanization prospects. The 2011 revision. Highlight (ESA/P/WP/224)},
year = {2012},
doi = {10.18356/08b807d4-en},
URL = {https://doi.org/doi:10.18356/08b807d4-en},
address = {New York},
publisher = {Department of Economic and Social Affairs, Population Division},
}