
http://researchbriefings.files.parliament.uk/documents/CBP-7840/CBP-7840.pdf

https://www.socialeurope.eu/overcrowded-camps-at-europes-borders

https://www.brookings.edu/blog/brookings-now/2017/08/24/do-immigrants-steal-jobs-from-american-workers/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=55726788