@article{Dunifon2007,
author = {Dunifon, R. and Kowaleski-Jones, L.},
title= {The influence of grandparents in single-mother families},
year = {2007},
doi = {10.1111/j.1741-3737.2007.00377.x},
volume = {69},
number = {2},
pages = {465--481},
}