@article{Surkyn2004,
author = {Surkyn, J. and Lesthaeghe, R.},
title= {Value orientations and the second demographic transition (SDT) in northern, western and southern Europe: An update},
year = {2004},
doi = {10.4054/DemRes.2004.S3.3},
journal = {Demographic Research, Special Collection},
volume = {3},
pages = {45--75},
}