https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/
https://www.opendemocracy.net/neweconomics/pfi-privatisation-national-accounting-rules-encourage-destructive-decisions-time-change/
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef20023en.pdf
https://www.financialsecrecyindex.com/introduction/fsi-2018-results