@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},
journal = {Comparative Population Studies},
volume = {38},
number = {1},
pages = {3--28},
}