@article{ref1,
title="Which homicides decreased? Why?",
journal="Journal of criminal law and criminology",
year="1998",
author="Maltz, M. D.",
volume="88",
number="4",
pages="1489-1496",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0091-4169",
doi="",
url="http://dx.doi.org/"
}