https://openmigration.org/analisi/lampedusa-10-anni-dopo-il-naufragio-e-il-cordoglio/
http://theconversation.com/eu-agencies-a-brexit-loss-nobodys-talking-about-76222
https://www.economiesuisse.ch/de/artikel/kuendigungsinitiative-ii-eine-wohlstandsbremse-par-excellence
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/866744/CCS0120013106-001_The_UKs_Points-Based_Immigration_System_WEB_ACCESSIBLE.pdf