@article{ref1,
title="Relationship of socioeconomic status and aggression in preschool children",
journal="Psychological reports",
year="1978",
author="Pearce, J. W.",
volume="43",
number="2",
pages="379-382",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2941",
doi="",
url="http://dx.doi.org/"
}