http://www.ips-journal.eu/regions/europe/article/show/bound-no-more-2609/
https://blogs.lse.ac.uk/europpblog/2021/07/23/same-legal-status-but-unequal-treatment-bureaucratic-discrimination-against-mobile-eu-citizens/
https://www.globalwitness.org/documents/20617/EACOP_report_-_FINAL_PDF.pdf
https://rlo.acton.org/archives/125251-milton-friedman-the-conservative-institution-builder.html