@article{ref1,
title="Why the prevention of aggressive disruptive behaviors in middle school must begin in elementary school",
journal="Clearing house",
year="2002",
author="Greer-Chase, Marlene and Rhodes, Warren A. and Kellam, Sheppard G.",
volume="75",
number="5",
pages="242-245",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0009-8655",
doi="10.1080/00098650209603948",
url="http://dx.doi.org/10.1080/00098650209603948"
}