
https://www.politico.eu/newsletter/brussels-playbook/weber-calls-on-tunisia-to-bring-down-migrant-numbers/

https://wiiw.ac.at/the-factors-driving-migration-intentions-and-destination-preferences-in-central-east-and-southeast-european-countries-dlp-6901.pdf

http://www.bertelsmann-stiftung.de/fileadmin/files/Projekte/Migration_fair_gestalten/IB_PolicyBrief_Einwanderungsgesetz_082017_ENG.pdf