@techreport{Kreyenfeld2010,
author = {Kreyenfeld, M. and Hornung, A. and Kubisch, K. and Jaschinski, I.},
title= {Fertility and Union Histories from German GGS Data: Some Critical Reflections},
year = {2010},
publisher = {Max Planck Institute for Demographic Research },
address = {Rostock},
number = {MPIDR working paper no. 2010-023},
}