Enlaces
- African poverty is falling! Faster than you think http://www.columbia.edu/~xs23/papers/pdfs/Africa_Paper_VX3.2.pdf
- International aid and private schools for the poor http://doingbadbydoinggood.com/2013/05/12/international-aid-and-private-schools-for-the-poor/
- In the beginning God created mathematics http://ashokarao.com/2013/05/12/in-the-beginning-god-created-mathematics/
- El cerebro crítico http://rsef.es/fisica-al-dia/item/363-el-cerebro-cr%C3%ADtico