
http://www.assemblee-nationale.fr/14/pdf/rap-info/i4551.pdf

http://www.bertelsmann-stiftung.de/fileadmin/files/Projekte/Migration_fair_gestalten/IB_Study_MixedMigration2017_ENG.pdf

https://www.clingendael.org/sites/default/files/2022-08/long-term-protection-in-europe-needed-for-millions-of-ukrainian-refugees-.pdf