@inbook{Willekens1991,
author = {Willekens, F.J. },
title= {Understanding the interdependence between parallel careers},
year = {1991},
doi = {10.1007/978-3-642-76550-6_2},
editor = {Siegers, J.J.},
editor = {de Jong-Gierveld, J.},
editor = {van Imhoff, E. },
booktitle = {Female labour market behaviour and fertility: A rational-choice approach},
address = {Berlin},
publisher = {Springer},
pages = {11--31},
}