@article{Dykstra2007,
author = {Dykstra, P.A. and Wagner, M.},
title= {Pathways to childlessness and late-life outcomes},
year = {2007},
doi = {10.1177/ 0192513X07303879},
journal = {Journal of Family Issues},
volume = {28},
number = {11},
pages = {1487--1517},
}