https://researchbriefings.files.parliament.uk/documents/CBP-7212/CBP-7212.pdf
https://www.ips-journal.eu/index.php?id=340&L=0&tx_news_pi1%5Bnews%5D=3713&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=ad69c8ba018780f41c99687150ea1447
https://www.gov.uk/guidance/status-of-eu-nationals-in-the-uk-what-you-need-to-know
http://www.ips-journal.eu/storage/topics/european-union/article/show/stars-in-their-eyes-2515/