https://eupinions.eu/index.php?id=12463
https://uk.finance.yahoo.com/news/businesss-government-lobbying-brexit-isnt-working-heres-143415309.html
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/899991/200713_BPDG_-_Border_Operating_Model_FINAL_1320_edit.pdf
https://www.esri.ie/system/files/publications/QEC2019SPR_SA_Bergin.pdf