http://www.consilium.europa.eu/en/press/press-releases/2017/04/29-euco-brexit-guidelines/
http://www.radiofree.org/us/why-diemuk-shouldnt-take-a-precise-position-on-the-brexit-negotiations-or-why-britain-is-screwed/
https://www.opendemocracy.net/en/pandemic-border/keeping-italian-agri-food-system-alive-migrant-farmworkers-wanted/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/695321/An_inspection_of_exit_checks.pdf