
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.llri.lt/wp-content/uploads/2018/06/Labour-Migration_3.pdf

https://www.nao.org.uk/wp-content/uploads/2016/02/Managing-the-supply-of-NHS-clinical-staff-in-England.pdf