http://fedtrust.co.uk/brexitthe-conservative-centre-cannot-hold/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/728135/THE_FUTURE_UK-EU_RELATIONSHIP.pdf
https://ukandeu.ac.uk/brexits-implications-for-environmental-policy/
http://ukandeu.ac.uk/brexit-a-french-perspective/