https://publications.parliament.uk/pa/cm201719/cmselect/cmpubacc/401/401.pdf
https://www.fdiintelligence.com/article/79498?utm_campaign=fDi%20Digest%2025.02.21&utm_source=emailCampaign&utm_content=&utm_medium=email
https://www.irishtimes.com/crime-law/courts/2022/11/11/supreme-court-to-rule-on-green-party-tds-challenge-to-eu-canada-trade-deal/
http://www.guengl.eu/uploads/news-documents/Working_paper_Border_controls_on_cross_border_trade_in_goods.pdf