https://www.eca.europa.eu/Lists/ECADocuments/SR22_17/SR_External_consultants_EN.pdf
https://static1.squarespace.com/static/5ef4d1da53822a571493ebd0/t/5ffcfaea93e2771243fce2ff/1610414842497/A-Wealth-Tax-For-The-UK.pdf
https://www.ipg-journal.de/interviews/artikel/das-vertrauen-vollstaendig-verloren-2934/
http://norden.diva-portal.org/smash/get/diva2:1095959/FULLTEXT02.pdf