@article{Balbo2013,
author = {Balbo, N. and Billari, F.C. and Mills, M.},
title= {Fertility in advanced societies: A review of research},
year = {2013},
doi = {10.1007/s10680-012-9277-y},
volume = {29},
number = {1},
pages = {1‒38},
}