https://eur-lex.europa.eu/legal-content/IT/TXT/PDF/?uri=CELEX:52019DC0406&from=FR
https://policyexchange.org.uk/wp-content/uploads/2017/07/After-Brexit-will-Ireland-be-next-to-exit-1.pdf
https://www.bbc.com/news/world-europe-46137139
https://reader.chathamhouse.org/europes-political-tribes#