@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--86},
}