Maslovskaya O, Chang G, Howe S, Aizpurua E, Perelli-Harris B. Effectiveness of Using Quick Response (QR) Codes in Survey Invitation Letters: Experiment Conducted in Generations and Gender Survey in the UK. SRM [Internet]. 2026 Oct. 26 [cited 2026 Oct. 29];20(3):359-67. Available from: https://ojs.ub.uni-konstanz.de/srm/article/view/8522