@article{ref1,
title="The effects of weaponry on human violence",
journal="Social forces",
year="1991",
author="Kleck, Gary D. and Mcelrath, K.",
volume="69",
number="3",
pages="669-692",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0037-7732",
doi="10.2307/2579469",
url="http://dx.doi.org/10.2307/2579469"
}