
https://www.wilsoncenter.org/sites/default/files/media/uploads/documents/RAFDI_Working_Group_Report_0.pdf

http://www.migrationobservatory.ox.ac.uk/resources/commentaries/brexodus-migration-and-uncertainty-after-the-eu-referendum/

http://www.consilium.europa.eu/en/press/press-releases/2017/04/29-euco-brexit-guidelines/