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

https://www.esri.ie/system/files/publications/SUSTAT95_0.pdf

https://www.socialeurope.eu/2017/06/strange-non-death-almps/