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

http://www.europarl.europa.eu/news/en/press-room/20171115IPR88120/ep-ready-to-start-talks-with-eu-governments-on-overhaul-of-dublin-system

https://www.theguardian.com/politics/2017/apr/19/gina-miller-best-for-britain-tactical-voting-against-hard-brexit?CMP=share_btn_link