https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:52023DC0800
https://www.ipg-journal.de/regionen/europa/artikel/detail/macht-statt-moral-3554/
http://ukandeu.ac.uk/wp-content/uploads/2018/10/The-mechanics-of-a-further-referendum-on-Brexit-Constitution-Unit-Report-1.pdf