https://ec.europa.eu/info/sites/info/files/strategic_foresight_report_2020_1.pdf
https://feps-europe.eu/news/friends-of-western-balkans-open-letter/
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_views-eu-27-v5_WEB.pdf
https://www.ipg-journal.de/regionen/europa/artikel/detail/national-oekologisches-patchwork-3976/