@article{ref1,
title="Immigration and Crime",
journal="American journal of sociology",
year="1896",
author="Hart, Hastings H.",
volume="2",
number="3",
pages="369-377",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/210623",
url="http://dx.doi.org/10.1086/210623"
}