https://www.foreignaffairs.com/europe/promise-and-peril-eu-expansion
https://www.socialeurope.eu/the-good-man-from-traiskirchen
https://ec.europa.eu/commission/publications/position-paper-transmitted-eu27-governance_en
https://www.bruegel.org/system/files/2024-06/PB%2011%202024_1.pdf