@article{Frejka2008,
author = {Frejka, T. and Sobotka, T.},
title= {Overview chapter 1: Fertility in Europe: Diverse, delayed and below replacement},
year = {2008},
doi = {10.4054/DemRes.2008.19.3},
journal = {Demographic Research},
volume = {19},
number = {3},
pages = {15--46},
}