https://www.foreignaffairs.com/europe/promise-and-peril-eu-expansion
https://www.bundeskanzler.de/bk-de/aktuelles/scholz-rede-prag-karls-uni-2079410
https://www.socialeurope.eu/eu-member-state-determined-others-greek-tragedy
https://institutdelors.eu/wp-content/uploads/2020/11/Paper-EU-reform.pdf