@article{ref1,
title="A priori assertions versus empirical inquiry: A reply to Kleck",
journal="Journal of quantitative criminology",
year="2001",
author="Koper, Christopher S. and Roth, Jeffrey A.",
volume="17",
number="1",
pages="81-88",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0748-4518",
doi="",
url="http://dx.doi.org/"
}