https://www.tandfonline.com/doi/epdf/10.1080/01402382.2023.2168945?needAccess=true&role=button
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/710147/DATA_-_FINAL.pdf
https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/36503.htm
http://www.businessforscotland.com/survey-scottish-business-loses-trust-uk-governments-brexit-negotiations/