Vestergren, S., J. Drury, and E. Hammar Chiriac. “How Participation in Collective Action Changes Relationships, Behaviours, and Beliefs: An Interview Study of the Role of Inter- and Intragroup Processes”. Journal of Social and Political Psychology, Vol. 7, no. 1, Feb. 2019, pp. 76-99, doi:10.5964/jspp.v7i1.903.