https://www.kcl.ac.uk/policy-institute/assets/uk-attitudes-to-immigration-1018742pub01-115.pdf
https://english.elpais.com/international/2023-04-17/the-underground-bankers-of-the-people-smuggling-business.html
https://ippedico.github.io/website/ABIP_entrepreneurship_drain.pdf
https://theconversation.com/the-greek-migrant-shipwreck-is-another-preventable-tragedy-at-the-borders-of-europe-207880
https://www.dw.com/en/european-union-bloc-backs-plan-for-stricter-asylum-reforms/a-65861983#:~:text=The%20European%20Union%27s%2027%20member%20states%20have%20agreed,those%20seeking%20asylum%20and%20solidarity%20in%20the%20EU.
https://www.migrationpolicy.org/article/spain-immigration-system-evolution?eType=EmailBlastContent&eId=a1fcdaaa-93ef-4a35-9397-e325534c6592&mc_cid=e4eef57c9d&mc_eid=d10a99d01e
https://www.ips-journal.eu/topics/foreign-and-security-policy/a-barbed-wire-curtain-around-europe-6602/?utm_campaign=en_1084_20230327&utm_medium=email&utm_source=newsletter
https://ukandeu.ac.uk/what-have-we-learned-about-migration-from-the-census/?mc_cid=50b7d10115&mc_eid=815b1928ec
https://www.esri.ie/system/files/publications/RS158_0.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/political-settlement-first-refugee-return-second-6619/?utm_campaign=en_1086_20230404&utm_medium=email&utm_source=newsletter