@article{ref1,
title="A note on marginal deterrence",
journal="International review of law and economics",
year="1992",
author="Shavell, Steven",
volume="12",
number="3",
pages="345-355",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0144-8188",
doi="10.1016/0144-8188(92)90013-H",
url="http://dx.doi.org/10.1016/0144-8188(92)90013-H"
}