https://www.occrp.org/en/daily/12149-denmark-will-not-give-aid-to-companies-registered-in-tax-havens
https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/366/366.pdf
https://curia.europa.eu/jcms/upload/docs/application/pdf/2020-04/cp200040en.pdf
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-2020-rapport-isf-octobre.pdf