@article{Kreyenfeld2012,
author = {Kreyenfeld, M. and Zeman, K. and Burkimsher, M. and Jaschinski, I.},
title= {Fertility data for German-speaking Countries: What is the potential? Where are the pitfalls?},
year = {2012},
doi = {10.12765/CPoS-2011-06},
volume = {36},
number = {2–3},
pages = {349--380},
}