@article{Keizer2010,
author = {Keizer, R. and Dykstra, P.A. and Poortman, A.},
title= {Life outcomes of childless men and fathers},
year = {2010},
doi = {10.1093/esr/jcn080},
journal = {European Sociological Review},
volume = {26},
number = {1},
pages = {1--15},
}