https://www.sbs.strath.ac.uk/economics/fraser/20171129/GMB-Brexit-report.pdf
http://ukandeu.ac.uk/brexit-a-french-perspective/
https://institute.global/news/tony-blair-parliaments-duty-brexit
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/710147/DATA_-_FINAL.pdf