@article{Vitali2009,
author = {Vitali, A. and Billari, F.C. and Prskawetz, A. and Testa, M.R.},
title= {Preference theory and low fertility: A comparative perspective},
year = {2009},
doi = {10.1007/s10680-009-9178-x},
journal = {European Journal of Population},
volume = {25},
number = {4},
pages = {413--438},
}