https://www.gisreportsonline.com/r/sweden-immigrants-crisis/
https://committees.parliament.uk/oralevidence/2766/pdf/
http://blogs.lse.ac.uk/brexit/2017/06/05/uk-voters-including-leavers-care-more-about-reducing-non-eu-than-eu-migration/
http://www.dw.com/en/eastern-european-migrants-in-the-uk-face-growing-hostility/a-19562199