https://www.swp-berlin.org/publications/products/arbeitspapiere/WP_03-2021_EPIN-Report_CoFoE_01.pdf
https://onlinelibrary.wiley.com/doi/10.1111/jcms.13415
https://www.bloomberg.com/politics/articles/2017-04-11/brexit-means-scots-need-to-make-informed-choice-sturgeon-says
https://socialeurope.eu/government-by-finger-pointing