@article{Kreyenfeld2013, author = {Kreyenfeld, M. and Hornung, A. and Kubisch, K.}, title= {The German Generations and Gender Survey: Some critical reflections on the validity of fertility histories}, year = {2013}, doi = {10.4232/10.CPOS-2013-02EN}, volume = {38}, number = {1}, pages = {3‒28}, }