https://www.clingendael.org/sites/default/files/2022-08/long-term-protection-in-europe-needed-for-millions-of-ukrainian-refugees-.pdf
http://blogs.lse.ac.uk/brexit/2017/06/05/uk-voters-including-leavers-care-more-about-reducing-non-eu-than-eu-migration/
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmwomeq/799/799.pdf