https://www.brookings.edu/wp-content/uploads/2018/04/workingpaper114-elephantchartrevisited.pdf
https://blogs.lse.ac.uk/europpblog/2023/10/17/why-differentiation-is-now-at-the-heart-of-europes-political-system/
https://www.socialeurope.eu/inequality-europe-can-done
https://www.opendemocracy.net/can-europe-make-it/samuel-salzborn/hungary-and-end-of-democracy?utm_source=Daily+Newsletter&utm_campaign=d1bbee59a3-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-d1bbee59a3-407405485