1. Betz, H. G. (1994): Radical right-wing populism in wester Europe, New York, St. Martins Press. Cuchet, G. (2018): Comment notre monde a cessé d'être chrétien, Seuil, Paris.
2. Ferreira, C. (2019): “Vox como representante de la derecha radical en España: Un estudio sobre su ideología”, Revista Española de Ciencia Política, 51, pp. 73-98.
3. Gunther, R. y J. R. Montero (2012): “From consensus transition to adversary democracy”, en Democracia, política i societat. Homenatje a Rosa Virós, Barcelona, Universitat Pompeu Fabra, pp. 101-136.
4. Inglehart, R. (1977): The silent revolution. Changing Values and Political Styles among Western Publics, Princeton University Press.
5. Inglehart R. (2018): Cultural Evolution, People's Motivations are Changing, and Reshaping the World, Cambridge University Press.