https://www.euronews.com/2018/09/25/why-is-the-irish-border-issue-so-complex-euronews-answers
https://www.gov.uk/government/speeches/pm-commons-statement-on-eu-reform-and-referendum-22-february-2016
https://blogs.sussex.ac.uk/uktpo/2017/09/01/the-eu-regulatory-magnet/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/699106/UK_position_paper_on_future_of_cohesion_policy_.pdf