@article{Downey2015,
author = {Downey, D.B. and Condron, D.J. and Yucel, D.},
title= {Number of siblings and social skills revisited among American fifth graders},
year = {2015},
doi = {10.1177/0192513X13507569},
volume = {36},
number = {2},
pages = {273--296},
}