https://www.brookings.edu/wp-content/uploads/2020/03/Del-Negro-et-al-Conference-Draft.pdf
https://blogs.lse.ac.uk/europpblog/2021/07/23/same-legal-status-but-unequal-treatment-bureaucratic-discrimination-against-mobile-eu-citizens/
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef18005en.pdf
https://www.socialeurope.eu/ais-impact-on-europes-job-market-a-call-for-a-social-compact