
http://www.cer.org.uk/sites/default/files/insight_js_st_9.6.17.pdf

https://blogs.lse.ac.uk/brexit/2021/05/17/brexit-is-a-political-ponzi-scheme/

https://www.nao.org.uk/wp-content/uploads/2018/01/Implementing-the-UKs-exit-from-the-European-Union-the-Deparment-for-International-Trade.pdf