@article{Sobotka2004a,
author = {Sobotka, T.},
title= {Is lowest-low fertility in Europe explained by the postponement of childbearing?},
year = {2004a},
doi = {10.1111/j.1728-4457.2004.010_1.x},
journal = {Population and Development Review},
volume = {30},
pages = {195--220},
}