https://www.ceps.eu/will-putins-war-in-ukraine-make-the-eu-stronger/
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.socialeurope.eu/eu-member-state-determined-others-greek-tragedy
https://ecipe.org/wp-content/uploads/2026/03/ECI_26_PolicyBrief_05-2026_LY01.pdf