@article{ref1,
title="Distinguishing "loner" attacks from other domestic extremist violence",
journal="Criminology and public policy",
year="2013",
author="Gruenewald, Jeff and Chermak, Steven and Freilich, Joshua D.",
volume="12",
number="1",
pages="65-91",
abstract="KEYWORDS: Terrorism<p /><p>Language: en</p>",
language="en",
issn="1538-6473",
doi="10.1111/1745-9133.12008",
url="http://dx.doi.org/10.1111/1745-9133.12008"
}