https://feps-europe.eu/wp-content/uploads/2023/11/PP23_WEB.pdf
https://www.ifs.org.uk/publications/14778
https://www.socialeurope.eu/2017/06/ten-thoughts-treaty-democratizing-euro-area-t-dem/
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/avis_du_comite_fiscalite_capital-01-10-2019.pdf