https://www.unhcr.org/gcr/GCR_English.pdf
https://carnegieendowment.org/politika/88202
http://www.consilium.europa.eu/en/press/press-releases/2017/04/29-euco-brexit-guidelines/
http://www.ips-journal.eu/regions/europe/article/show/divide-and-rule-2125/