https://www.socialeurope.eu/wp-content/uploads/2018/05/BP1-Devolution.pdf
https://www.gov.uk/government/news/david-davis-opening-remarks-at-the-start-of-the-third-round-of-eu-exit-negotiations
https://www.dw.com/en/brexit-german-leaders-write-emotional-letter-to-britain/a-47132376