@article{Gustafsson2001,
author = {Gustafsson, S.},
title= {Optimal age at motherhood. Theoretical and empirical considerations on postponement of maternity in Europe},
year = {2001},
doi = {10.1007/s001480000051},
journal = {Journal of Population Economics},
volume = {14},
number = {2},
pages = {225--247},
}