Primary researcher of this study is:
Schmitt, Hermann, Mannheimer Zentrum für Empirische Sozialforschung (MZES)
Dataset: 1.0.0 (30.07.2021) doi:10.4232/1.13601
Access class: C - Data and documents are only released for academic research and teaching after the data depositor's written authorization. For this purpose the Data Archive obtains a written permission with specification of the user and the analysis intention.
More information is available at the data catalogue: study description.