Ortmanns, Verena, and Silke L. Schneider. “Can We Assess Representativeness of Cross-National Surveys Using the Education Variable?”. Survey Research Methods 10, no. 3 (December 10, 2016): 189–210. Accessed May 2, 2024. https://ojs.ub.uni-konstanz.de/srm/article/view/6608.