
http://www.iata.org/whatwedo/Documents/economics/impact_of_brexit.pdf

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/710147/DATA_-_FINAL.pdf

https://blogs.lse.ac.uk/brexit/2020/10/22/the-cost-of-brexit-is-likely-to-be-more-than-double-that-of-covid-it-must-be-delayed/