https://zoe-institut.de/wp-content/uploads/2021/06/ZOE_Report_A-future-fit-recovery_FINAL.pdf
https://www.socialeurope.eu/2017/07/european-safe-bond-handle-care/
http://www.europarl.europa.eu/ftu/pdf/en/FTU_5.9.1.pdf
https://cthi.taxjustice.net/cthi2021/country-list.pdf