https://www.ft.com/content/ed91e91a-87f2-11e7-8bb1-5ba57d47eff7
https://institute.global/news/tony-blair-parliaments-duty-brexit
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/704057/Policy_Note_-_Exceptions_and_Licences.pdf
https://bdi.eu/media/user_upload/20171005_Pressemitteilung_Brexit.pdf