https://www.tandfonline.com/doi/full/10.1080/13511610.2021.1968355
https://www.migrationpolicy.org/news/eu-pact-migration-asylum-bold-move-avoid-abyss
https://www.cer.eu/sites/default/files/insight_JS_JP_17.1.23.pdf
http://www.migrationobservatory.ox.ac.uk/resources/reports/unsettled-status-which-eu-citizens-are-at-risk-of-failing-to-secure-their-rights-after-brexit/