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

https://www.ips-journal.eu/topics/democracy-and-society/between-human-rights-and-border-control-6860/

https://www.gov.uk/guidance/status-of-eu-nationals-in-the-uk-what-you-need-to-know