http://blogs.lse.ac.uk/politicsandpolicy/john-mills-ge2017/
https://ukandeu.ac.uk/wp-content/uploads/2021/06/EU-UK-2030-Report.pdf
http://visual.ons.gov.uk/trading-places-uk-goods-trade-with-eu-partners/
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/643924/Foreign_policy__defence_and_development_paper.pdf