http://docs.dpaq.de/10395-0216-euco-conclusions.pdf
https://www.socialeurope.eu/brexit-status-quo-ex-ante
http://www.economics-ejournal.org/economics/journalarticles/2017-4
https://blogs.lse.ac.uk/europpblog/2024/05/31/the-netherlands-still-european-in-the-eye-of-the-populist-storm/