http://www.assemblee-nationale.fr/14/pdf/rap-info/i4485.pdf
http://cer.eu/in-the-press/speech-michel-barnier-future-eu-conference
https://www.instituteforgovernment.org.uk/printpdf/10590
https://ukandeu.ac.uk/wp-content/uploads/2019/12/Brexit-the-manifestos-uncovered.pdf