@article{ref1,
title="Violence and non-violence",
journal="Public health",
year="1973",
author="Frakenberg, Ronald",
volume="87",
number="6",
pages="210-217",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0033-3506",
doi="10.1016/S0033-3506(73)80024-1",
url="http://dx.doi.org/10.1016/S0033-3506(73)80024-1"
}