http://blogs.lse.ac.uk/brexit/2017/08/22/what-does-respecting-the-referendum-result-mean/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/704057/Policy_Note_-_Exceptions_and_Licences.pdf
https://medium.com/@jonathanrowson/brexit-democracy-and-the-sacred-why-a-second-referendum-has-to-be-sacrificial-c1c4a84e853a
https://curia.europa.eu/jcms/upload/docs/application/pdf/2018-12/cp180187en.pdf