
http://www.kavalacapital.com/content/20201201-Rapport_ecommerce.pdf

https://www.cer.eu/sites/default/files/insight_JS_JP_17.1.23.pdf

https://blogs.lse.ac.uk/europpblog/2021/07/23/same-legal-status-but-unequal-treatment-bureaucratic-discrimination-against-mobile-eu-citizens/