@article{Pebley1999,
author = {Pebley, A.R. and Rudkin, L.L.},
title= {Grandparents caring for grandchildren. What do we know?},
year = {1999},
doi = {10.1177/019251399020002003},
journal = {Journal of Family Issues},
volume = {20},
number = {2},
pages = {218--242},
}