
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/

https://www.brookings.edu/blog/future-development/2020/01/27/sharing-the-burden-of-the-global-refugee-crisis/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=82505194

https://www.politico.eu/article/ukraine-citizenship-war-russia-weaponize-passport-passportization-mobilization-draft/?utm_source=POLITICO.EU&utm_campaign=43834e51aa-EMAIL_CAMPAIGN_2023_01_07_09_00&utm_medium=email&utm_term=0_10959edeb5-43834e51aa-%5BLIST_EMAIL_ID%5D