https://www.gov.uk/government/news/pms-european-council-press-statement-20-october-2017
https://www.bloomberg.com/news/articles/2017-06-01/soros-says-brexit-may-last-5-years-and-cause-immense-damage?cmpid=BBBXT060217_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170602&utm_campaign=brexit
https://blogs.lse.ac.uk/brexit/2021/04/13/the-totality-of-uk-irish-relations/
https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/36503.htm