https://undocs.org/en/A/CONF.231/3
https://www.wilsoncenter.org/blog-post/afghan-refugees-still-limbo
https://carnegieendowment.org/politika/88202
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/