https://www.ecb.europa.eu/press/accounts/2020/html/ecb.mg200409_1~baf4b2ad06.en.html
http://www.ips-journal.eu/regions/europe/article/show/myth-of-the-echo-chamber-2135/
https://www.socialeurope.eu/the-discreet-but-dubious-charm-of-tax-treaties
https://www.diw.de/documents/publikationen/73/diw_01.c.578096.de/18-7-3.pdf