@article{Amorim2017,
author = {Amorim, M. and Pilkauskas, N. and Dunifon, R.},
title= {The magnitude and timing of grandparental coresidence during childhood in the United States},
year = {2017},
doi = {10.4054/DemRes.2017.37.52},
volume = {37},
number = {52},
pages = {1695--1706},
}