
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/

https://www.politico.eu/article/the-brexit-referendum-10-years-on/

https://committees.parliament.uk/publications/8781/documents/88926/default/