http://www.nytimes.com/interactive/2015/06/21/world/map-flow-desperate-migration-refugee-crisis.html?_r=2
http://geography.org.uk/resources/refugeesandmigration/
http://diplomatie.belgium.be/nl/binaries/GLOBE-GENDER-NL-2015-Migratie_tcm314-271734.pdf
http://www.express.be/business/?action=view&cat=economy&item=4-grafieken-die-duidelijkheid-verschaffen-over-de-huidige-immigratiegolven&language=nl&utm_source=newsletter&utm_medium=email&utm_campaign