https://blogs.sussex.ac.uk/uktpo/2018/12/17/organising-the-second-referendum/
https://theconversation.com/britain-better-fix-its-identity-crisis-fast-or-risk-a-disastrous-brexit-81227
https://onlinelibrary.wiley.com/doi/epdf/10.1111/jcms.13386
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/704057/Policy_Note_-_Exceptions_and_Licences.pdf