On the nonlinear link between stigma and collective action: Evidence from sexual and gender minorities in 25 countries - Selvanathan,H.P.; Valdenegro,D.; Noor,M.; Visintin,E.P.; Lalot,F.; Sainz,M.; Bilewicz,M.; Hayward,L.; Sebben,S.; Ullrich,J.; Hässler,T. (Group Processes and Intergroup Relations, 2025)