@article{ref1,
title="Principles for effective gun policy",
journal="Fordham law review",
year="2004",
author="Cook, Philip J. and Ludwig, J.",
volume="73",
number="2",
pages="589-613",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0015-704X",
doi="",
url="http://dx.doi.org/"
}