https://www.pwc.com/co/es/publicaciones/assets/world-in-2050-final-report-february-2015-colombia.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/ecuador-in-a-stranglehold-7505/
https://www.imf.org/~/media/Files/Publications/WEO/2018/October/English/c2.ashx?la=en
https://www.politico.eu/article/belgium-drugs-narcotics-ine-van-wymersch-crack-brussels/