https://www.politico.eu/article/eu-tunisia-migration-funds-von-der-leyen-agreement/
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/
https://www.wired.com/story/russian-techies-exodus-ukraine/?utm_source=newsletter&utm_medium=email&utm_campaign=23%2F03%2F22++(Copy)+(Copy)#intcid=_wired-verso-hp-trending_444226e1-5b4d-43c1-bdac-d4a2c5859d2f_popular4-1
http://www.bertelsmann-stiftung.de/fileadmin/files/Projekte/Migration_fair_gestalten/IB_PolicyBrief_Einwanderungsgesetz_082017_ENG.pdf