
https://www.imf.org/-/media/Files/Publications/PP/2023/English/PPEA2023001.ashx

https://www.consilium.europa.eu/en/press/press-releases/2017/07/11/conclusions-non-performing-loans/pdf

https://wiiw.ac.at/alternatives-in-the-design-of-sovereign-green-bonds-dlp-6412.pdf