
https://www.ipg-journal.de/regionen/europa/artikel/detail/wind-in-ihren-segeln-4625/

http://blogs.lse.ac.uk/brexit/2017/05/31/eu-migrants-going-home-with-skills-acumen-and-higher-expectations/

http://publications.iom.int/system/files/pdf/wmr_2018_en.pdf