https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32019R0452&from=EN
https://ukandeu.ac.uk/explainers/the-protocol-on-ireland-northern-ireland/?mc_cid=2bd4dc8e93&mc_eid=815b1928ec
https://www.wto.org/english/res_e/booksp_e/blockchainrev18_e.pdf
https://cepr.org/voxeu/columns/eus-strategic-dependencies-unveiled