https://www.dw.com/en/brexit-german-leaders-write-emotional-letter-to-britain/a-47132376
https://uk.reuters.com/article/uk-britain-eu-options/stairway-to-brexit-barnier-maps-out-uks-canadian-path-idUKKBN1ED23R
https://economy2030.resolutionfoundation.org/wp-content/uploads/2023/12/Ending-stagnation-final-report.pdf
https://apps.eui.eu/EUI_API/EVENTSV2/Attachments/Index?id=22316