https://www.theatlantic.com/international/archive/2021/09/afghanistan-brain-drain/619959/?utm_source=newsletter&utm_medium=email&utm_campaign=03%2F09%2F21
https://www.socialeurope.eu/romania-and-bulgaria-stuck-in-eus-second-tier
http://cadmus.eui.eu/bitstream/handle/1814/45187/Ebook_IntegrationMigrantsRefugees2017.pdf?sequence=3&isAllowed=y