http://publications.iom.int/system/files/pdf/global_migration_indicators_2018.pdf
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmexeu/1125/1125.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/a-barbed-wire-curtain-around-europe-6602/?utm_campaign=en_1084_20230327&utm_medium=email&utm_source=newsletter