https://ecipe.org/wp-content/uploads/2024/06/ECI_24_PolicyBrief_13-2024_LY02.pdf
https://www.bankofengland.co.uk/-/media/boe/files/working-paper/2022/horses-for-courses-measuring-foreign-supply-chain-exposure.pdf?la=en&hash=4DDAA1DD7E8446384A7C3C6380C00E305142A4F3
https://ec.europa.eu/commission/sites/beta-political/files/customs_controls_0.pdf
http://ecipe.org/publications/the-uks-first-international-trade-negotiation/?chapter=all