
https://www.europarl.europa.eu/at-your-service/files/be-heard/eurobarometer/2019/parlemeter-2019/executive-summary/en-parlemeter-2019-executive-summary.pdf

https://ukandeu.ac.uk/the-german-or-french-way-international-interdependence-vs-european-sovereignty/?mc_cid=50b7d10115&mc_eid=815b1928ec

https://www.ipg-journal.de/schwerpunkt-des-monats/illusionen/artikel/detail/illusion-die-eu-laesst-sich-demokratisieren-3144/