https://www.euronews.com/2018/09/25/why-is-the-irish-border-issue-so-complex-euronews-answers
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_Brexit_dispute_resolution_WEB.pdf
http://news.sky.com/story/theresa-may-theres-no-economic-case-for-breaking-up-the-uk-10787816
http://www.ecfr.eu/article/commentary_there_is_life_for_the_eu_after_brexit