de la Croix, David and Matthias Doepcke: Inequality and growth: why differential fertility matters. American Economic Review 4 (2003) 1091-1113. [3]Archivado el 24 de junio de 2022 en Wayback Machine.
unfpa.org
UNFPA: Population and poverty. Achieving equity, equality and sustainability. Population and development series no. 8, 2003.[4]Archivado el 21 de abril de 2013 en Wayback Machine.
de la Croix, David and Matthias Doepcke: Inequality and growth: why differential fertility matters. American Economic Review 4 (2003) 1091-1113. [3]Archivado el 24 de junio de 2022 en Wayback Machine.
UNFPA: Population and poverty. Achieving equity, equality and sustainability. Population and development series no. 8, 2003.[4]Archivado el 21 de abril de 2013 en Wayback Machine.