http://www.bakermckenzie.com/-/media/files/insight/publications/brexit_tradeflows.pdf?la=en
https://blogs.lse.ac.uk/brexit/2021/05/17/brexit-is-a-political-ponzi-scheme/
https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/780/780.pdf
http://www.iata.org/whatwedo/Documents/economics/impact_of_brexit.pdf