@article{ref1,
title="A statewide assessment of gangs in the public schools: Origins, membership and criminal activities",
journal="Journal of gang research",
year="2001",
author="Yearwood, Douglas L. and Hayes, Richard",
volume="8",
number="4",
pages="1-12",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="1079-3062",
doi="",
url="http://dx.doi.org/"
}