@article{ref1,
title="Investigating gang structures",
journal="Journal of gang research",
year="1995",
author="Maxson, Cheryl L. and Klein, Malcolm W.",
volume="3",
number="1",
pages="33-40",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="1079-3062",
doi="",
url="http://dx.doi.org/"
}