https://www.economiesuisse.ch/de/artikel/ohne-schuldenbremse-droht-die-schuldenspirale
https://reclaimfinance.org/site/wp-content/uploads/2020/05/Rapport-Quantitative-easing-le-sale-secret-de-la-BCE-RF.pdf
https://www.europarl.europa.eu/doceo/document/A-9-2023-0155_EN.html