https://www.socialeurope.eu/schrodingers-immigrant
https://insightcrime.org/wp-content/uploads/2023/06/HGBF-US-Policy-OC-and-Migration-Policy-Brief-InSight-Crime-June-2023-FINAL-ENG.pdf
http://www.consilium.europa.eu/en/press/press-releases/2017/04/29-euco-brexit-guidelines/