https://www.sussex.ac.uk/webteam/gateway/file.php?name=briefing-paper-1.pdf&site=18
https://www.gov.uk/government/news/david-davis-closing-remarks-at-the-end-of-the-fourth-round-of-eu-exit-negotiations-in-brussels
https://ukandeu.ac.uk/energy-security-and-industrial-strategy-uk-and-eu-divergence/
https://www.brookings.edu/articles/instrument-of-order/