http://www.migrationobservatory.ox.ac.uk/resources/commentaries/brexodus-migration-and-uncertainty-after-the-eu-referendum/
https://openmigration.org/analisi/lampedusa-10-anni-dopo-il-naufragio-e-il-cordoglio/
http://www.telegraph.co.uk/news/2017/05/23/66m-migrants-waiting-cross-europe-africa-report/