@book{Frejka2008,
author = {Frejka, T. and Sobotka, T. and Hoem, J.M. and Toulemon, L.},
title= {Childbearing Trends and Policies in Europe-Special Collection 7. Demographic Research},
year = {2008},
doi = {10.4054/DemRes.2008.19.1},
URL = {http://www.demographic-research.org/special/7/},
}