https://ec.europa.eu/commission/sites/beta-political/files/guiding-principles-dialogue-ei-ni_en.pdf
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/129/129.pdf
https://www.irishtimes.com/opinion/editorial/the-irish-times-view-on-brexit-day-britain-s-great-leap-backwards-1.4156666
https://www.opendemocracy.net/uk/robin-wilson/brexit-view-from-other-end-of-telescope?utm_source=Daily+Newsletter&utm_campaign=51652e55f2-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-51652e55f2-407405485