
https://www.politico.eu/article/ursula-von-der-leyen-biography-career-inconvenient-truth/

https://ecfr.eu/wp-content/uploads/2023/03/Fragile-unity-Why-Europeans-are-coming-together-on-Ukraine-and-what-might-drive-them-apart_v2.pdf

http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf