@article{Voas2003,
author = {Voas, D.},
title= {Conflicting preferences: A reason fertility tends to be too high or too low},
year = {2003},
doi = {10.1111/j.1728-4457.2003.00627.x},
journal = {Population and Development Review},
volume = {29},
number = {4},
pages = {627--646},
}