https://www.diw.de/documents/publikationen/73/diw_01.c.578096.de/18-7-3.pdf
https://www.cfr.org/blog/power-and-financial-interdependence
http://www.egmontinstitute.be/content/uploads/2019/03/SPB108.pdf?type=pdf
https://www.europarl.europa.eu/meps/en/full-list/all