
https://www.greatbritishpolitics.co.uk/europe/654-dual-nationality-and-the-hurdles-facing-britons-who-want-to-keep-eu-citizenship-after-brexit.html

https://www.socialeurope.eu/2017/07/49234/

http://uk.reuters.com/article/uk-britain-eu-immigration-idUKKBN18L0XG