
https://www.sachverstaendigenrat-wirtschaft.de/fileadmin/dateiablage/gutachten/jg201819/Chapter_1.pdf

http://www.institutdelors.eu/media/europeidentitemythes-bouchard-ijd-dec16.pdf?pdf=ok

https://www.ips-journal.eu/topics/european-integration/the-european-union-looks-north-8527/