
https://www.opendemocracy.net/uk/jeremy-gilbert/forty-years-of-failure-how-to-challenge-narrative-of-hard-brexit

http://www.ips-journal.eu/regions/europe/article/show/divide-and-rule-2125/

http://www.niesr.ac.uk/sites/default/files/publications/NIESR%20EU2%20MIGRATION%20REPORT.pdf