https://www.ecb.europa.eu/press/key/date/2017/html/ecb.sp170524.en.html
https://commission.europa.eu/document/download/ec1409c1-d4b4-4882-8bdd-3519f86bbb92_en?filename=The%20future%20of%20European%20competitiveness_%20In-depth%20analysis%20and%20recommendations_0.pdf
http://www.ladocumentationfrancaise.fr/pages-europe/pe000071-interrogations-sur-l-avenir-de-la-politique-de-cohesion-apres-2020-par-marjorie-jouen/article
https://www.politico.eu/article/markus-soders-crumbling-empire/