Guerra, R., Bierwiaczonek, K., Ferreira, M., Golec, A., Abakoumkin, G., Wildschut, T....Sedikides, C. (2022). An intergroup approach to collective narcissism: intergroup threats and hostility in four European Union countries. Group Processes and Intergroup Relations, 25(2), 415?433. https://doi.org/10.1177/1368430220972178