@article{Hayford2013,
author = {Hayford, S.R.},
title= {Marriage (still) matters: The contribution of demographic change to trends in childlessness in the United States},
year = {2013},
doi = {10.1007/s13524-013-0215-3},
volume = {50},
number = {5},
pages = {1641--1661},
}