@article{Lesthaeghe1999,
author = {Lesthaeghe, R. and Willems, P.},
title= {Is low fertility a temporary phenomenon in the European Union?},
year = {1999},
doi = {10.1111/j.1728-4457.1999.00211.x},
journal = {Population and Development Review},
volume = {25},
number = {2},
pages = {211--228},
}