
http://www.transparency.org/news/feature/europe_and_central_asia_an_overall_stagnation

https://wiiw.ac.at/rrf-2-0-ein-permanenter-eu-investitionsfonds-im-kontext-von-energiekrise-klimawandel-und-eu-fiskalregeln-dlp-6413.pdf

https://www.esrb.europa.eu/pub/pdf/wp/esrbwp21.en.pdf