Enderle, Tobias, Ralf Münnich, and Christian Bruch. “On the Impact of Response Patterns on Survey Estimates from Access Panels”. Survey Research Methods 7, no. 2 (June 30, 2013): 91–101. Accessed April 26, 2024. https://ojs.ub.uni-konstanz.de/srm/article/view/5036.