@article{ref1,
title="Methodological issues in studying Chinese gang extortion",
journal="Gang journal",
year="1994",
author="Chin, Ko-lin and Kelly, Robert J. and Fagan, Jeffrey A.",
volume="1",
number="2",
pages="25-36",
abstract="<p>[Abstract unavailable]</p>  <p>Keywords: Juvenile justice</p>",
language="en",
issn="1061-5326",
doi="",
url="http://dx.doi.org/"
}