https://bdi.eu/media/pressecenter/#/artikel/news/brexit-wirft-seine-schatten-voraus/
https://www.gov.uk/government/speeches/eu-speech-at-bloomberg
https://ukandeu.ac.uk/northern-irelands-vicious-cycle-of-governance-failure/
http://www.parliament.uk/documents/commons-committees/Exiting-the-European-Union/17-19/Cross-Whitehall-briefing/EU-Exit-Analysis-Cross-Whitehall-Briefing.pdf