https://www.brookings.edu/wp-content/uploads/2016/07/Full-Report.pdf
https://www.esri.ie/system/files/publications/WP677_0.pdf
https://nationalaffairs.com/publications/detail/men-and-women-work
https://blogs.lse.ac.uk/europpblog/2021/07/23/same-legal-status-but-unequal-treatment-bureaucratic-discrimination-against-mobile-eu-citizens/