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

https://www.theguardian.com/politics/2017/may/04/brexit-talks-leadership-vacuum-leaves-45-chance-of-no-deal

http://www.ecreu.com/pdfs/alternative-white-paper-presented-by-UK-%20citizens-in-europe.pdf