https://ukandeu.ac.uk/the-german-or-french-way-international-interdependence-vs-european-sovereignty/?mc_cid=50b7d10115&mc_eid=815b1928ec
https://www.ceps.eu/wp-content/uploads/2022/11/next-steps-for-eu-enlargement-forwards-or-backwards.pdf
https://www.swp-berlin.org/publications/products/arbeitspapiere/WP_03-2021_EPIN-Report_CoFoE_01.pdf