
https://business-humanrights.org/sites/default/files/documents/fra-2017-opinion-01-2017-business-human-rights_en.pdf

http://www2.warwick.ac.uk/fac/soc/pais/research/researchcentres/irs/crossingthemed/ctm_final_report_4may2017.pdf

https://blogs.lse.ac.uk/brexit/2020/02/21/migration-how-scotland-hoped-to-do-things-differently/