Hox, Joop J.C.M., Rens van de Schoot, and Suzette Matthijsse. “How Few Countries Will Do? Comparative Survey Analysis from a Bayesian Perspective”. Survey Research Methods 6, no. 2 (July 11, 2012): 87-93. Accessed June 15, 2021. https://ojs.ub.uni-konstanz.de/srm/article/view/5033.