@inbook{Gustafsson2000,
author = {Gustafsson, S. and Wetzels, C.},
title= {Optimal age at giving birth: Germany, Great Britain, the Netherlands and Sweden},
year = {2000},
editor = {Gustafsson, S.},
editor = {Daniele, M.},
booktitle = {Gender and the Labour Market, Econometric Evidence of Obstacles to Achieving Gender Equality},
address = {London},
publisher = {MacMillan Press Ltd},
}