
https://committees.parliament.uk/oralevidence/2766/pdf/

https://www.gov.uk/government/news/joint-article-a-deep-and-special-partnership

https://blogs.lse.ac.uk/brexit/2021/02/04/indyref2-scottish-independence-would-be-2-3-times-more-costly-than-that-of-brexit-and-rejoining-the-eu-wouldnt-make-up-the-difference/