@article{ref1,
title="The So-Called Criminal Type",
journal="American journal of sociology",
year="1912",
author="Sheffield, Alfred D.",
volume="18",
number="3",
pages="381-390",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/212101",
url="http://dx.doi.org/10.1086/212101"
}