@article{ref1,
title="Crime and punishment: an economic approach",
journal="Journal of political economy",
year="1968",
author="Becker, Gary S.",
volume="76",
number="2",
pages="169-217",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0022-3808",
doi="10.1086/259394",
url="http://dx.doi.org/10.1086/259394"
}