https://www.socialeurope.eu/germanys-protests-defying-a-national-stereotype
https://www.ifs.org.uk/uploads/Presentations/Carl%20Emmerson%2C%202017%20General%20Election%2C%20manifesto%20analysis%2C%20opening%20remarks.pdf
https://verfassungsblog.de/la-foule-le-peuple-et-la-societe-2/
http://lislampourlesnuls.blogspot.com/2018/12/charte-officielle-des-gilets-jaunes.html