https://www.socialeurope.eu/deja-vu-home-office
https://www.gov.uk/guidance/status-of-eu-nationals-in-the-uk-what-you-need-to-know
https://ukandeu.ac.uk/trade-migration-and-brexit/
https://www.socialeurope.eu/2017/06/theresa-mays-other-citizens-of-nowhere/