@article{ref1,
title="Criminality and Immigration",
journal="Journal of the American Institute of Criminal Law and Criminology",
year="1929",
author="Hacker, E",
volume="20",
number="3",
pages="429-438",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0885-4173",
doi="",
url="http://dx.doi.org/"
}