https://www.ips-journal.eu/topics/european-integration/orban-is-playing-the-long-game-7303/
https://www.lse.ac.uk/ideas/Assets/Documents/reports/LSE-IDEAS-The-Rise-of-Insurgent-Europeanism.pdf
http://www.progressives-zentrum.org/wp-content/uploads/2018/10/Les-Oubliés-Entretiens-sur-les-terres-où-prospère-le-vote-extrême_Das-Progressive-Zentrum_Johannes-Hillje.pdf
https://www.esri.ie/system/files/publications/SUSTAT106_1.pdf