@article{ref1,
title="Strengths in the Grandparent-Grandchild Relationship",
journal="Activities, adaptation and aging",
year="1993",
author="Sanders, Gregory F. and Trygstad, Debra W.",
volume="17",
number="4",
pages="43-53",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0192-4788",
doi="10.1300/J016v17n04_05",
url="http://dx.doi.org/10.1300/J016v17n04_05"
}