@article{ref1,
title="Violence: The role of society and state",
journal="Nature",
year="2011",
author="Nelson, Gary G.",
volume="480",
number="7376",
pages="181-181",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/480181a",
url="http://dx.doi.org/10.1038/480181a"
}