@article{Keizer2008,
author = {Keizer, R. and Dykstra, P.A. and Jansen, M.D.},
title= {Pathways into childlessness: Evidence of gendered life course dynamics},
year = {2008},
doi = {10.1017/S0021932007002660},
journal = {Journal of Biosocial Science},
volume = {40},
number = {6},
}