https://www.openglobalrights.org/five-key-battles-for-re-imagining-democracy-i-a-radically-changed-world/?lang=English
https://blogs.lse.ac.uk/europpblog/2021/10/28/what-explains-the-fragmentation-of-the-german-party-system/
https://www.consilium.europa.eu/media/ny3j24sm/much-more-than-a-market-report-by-enrico-letta.pdf