TY - JOUR A1 - Wolf, C. A1 - Christmann, P. A1 - Gummer, T. A1 - Schnaudt, C. A1 - Verhoeven, S. T1 - Conducting general social surveys as self-administered mixed-mode surveys Y1 - 2021 DO - 10.1093/poq/nfab039 VL - 85 IS - 2 ER -