https://www.ecb.europa.eu/press/key/date/2017/html/ecb.sp170524.en.html
https://visegradinsight.eu/more-visible-europe-union-eu-germany/
https://www.lse.ac.uk/european-institute/Assets/Documents/LEQS-Discussion-Papers/LEQSPaper169.pdf
https://vouliwatch.gr/about/en