
http://blogs.lse.ac.uk/brexit/2017/06/05/uk-voters-including-leavers-care-more-about-reducing-non-eu-than-eu-migration/

https://ippedico.github.io/website/ABIP_entrepreneurship_drain.pdf

https://ukandeu.ac.uk/what-have-we-learned-about-migration-from-the-census/?mc_cid=50b7d10115&mc_eid=815b1928ec