http://www.sussex.ac.uk/spru/newsandevents/2017/publications/food-brexit
https://blogs.lse.ac.uk/brexit/2021/04/13/the-totality-of-uk-irish-relations/
http://docs.dpaq.de/10395-0216-euco-conclusions.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/655232/DExEU_ARA_v5.0_amended_version_14.08.17__1_.pdf