https://economiesuisse.ch/de/artikel/schuldenbremse-so-gut-wie-vor-20-jahren-und-genauso-wichtig
https://www.schroders.com/en-gb/uk/intermediary/insights/are-more-sustainable-companies-more-expensive/
https://www.socialeurope.eu/2017/07/european-safe-bond-handle-care/
https://cerre.eu/wp-content/uploads/2022/12/Digital-Industrial-Policy-for-Europe.pdf