https://www.dsgv.de/newsroom/presse/190912_PM_EZB_30.html
https://www.veblen-institute.org/Editorial-Assumer-l-impot
http://www.ips-journal.eu/regions/europe/article/show/a-banking-union-without-unity-2181/
https://www.economiesuisse.ch/de/artikel/gut-so-trotz-zinspause-wird-die-geldpolitik-straffer