@article{Balbo2013,
author = {Balbo, N. and Billari, F.C. and Mills, M.C.},
title= {Fertility in Advanced Societies: A Review of Research},
year = {2013},
doi = {10.1007/s10680-012-9277-y},
journal = {European Journal of  Population},
volume = {29},
pages = {1--38},
}