http://www.economics-ejournal.org/economics/journalarticles/2017-4
https://www.ips-journal.eu/topics/foreign-and-security-policy/time-for-european-sovereignty-6365/?utm_campaign=en_1056_20221206&utm_medium=email&utm_source=newsletter
https://socialeurope.eu/why-do-we-need-a-european-digital-public-sphere
https://www.d-kart.de/en/blog/2020/05/11/ultra-vires/