https://www.esri.ie/system/files/publications/RS185_0.pdf
https://www.politico.eu/article/france-america-charles-michel-armenia-azerbaijan-nagorno-karabakh-refugees/
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/
https://www.cer.eu/sites/default/files/insight_JS_JP_17.1.23.pdf