@article{ref1,
title="Graffiti Formats: Are they Gangs or Graffiti Crews?",
journal="Journal of gang research",
year="2008",
author="Davis, Kenneth A.",
volume="15",
number="2",
pages="1-18",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="1079-3062",
doi="",
url="http://dx.doi.org/"
}