@inbook{Caldwell2006,
author = {Caldwell, J.C.},
title= {Social upheaval and fertility decline},
year = {2006},
doi = {10.1007/978-1-4020-4498-4_12},
editor = {Caldwell, J.C.},
booktitle = {Demographic transition theory},
address = {Dordrecht },
publisher = {Springer Netherlands},
pages = {273--299},
}