https://www.socialeurope.eu/new-spo-leader-can-he-stem-the-far-right-surge
http://www.iemed.org/observatori/arees-danalisi/arxius-adjunts/anuari/med.2018/IEMed_Crisis_EU_project_Medyearbook2018_Marc_Pierini.pdf
https://ukandeu.ac.uk/dissatisfaction-with-democracy-in-croatia/