https://ukandeu.ac.uk/wp-content/uploads/2022/09/UKICE-Levelling-Up-Report.pdf
https://yougov.co.uk/news/2017/08/01/britain-nation-brexit-extremists/
http://www.cer.eu/sites/default/files/pb_ireland_brexit_6.7.17.pdf
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/129/129.pdf