
https://www.euronews.com/2018/09/25/why-is-the-irish-border-issue-so-complex-euronews-answers

https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/780/780.pdf

http://www.britishchambers.org.uk/Workforce%20Survey%202017%20-%20Skills%20shortages.pdf