Küpper, Beate, Jost Reinecke, Nico Mokros, and Andreas Zick. “Validation of a Model of Right-Wing Extremist Attitudes Based on a Repeated Cross-Sectional Survey in Germany”. Measurement Instruments for the Social Sciences 7 (November 21, 2025): Article e16909. Accessed May 24, 2026. https://miss.psychopen.eu/index.php/miss/article/view/16909.