@article{ref1,
title="The problem of gangs and security threat groups (STGs) in American prisons today: A special NGCRC report",
journal="Journal of gang research",
year="2004",
author="Knox, George W.",
volume="12",
number="1",
pages="1-76",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="1079-3062",
doi="Article",
url="http://dx.doi.org/Article"
}