@article{ref1,
title="Overview of the causes and prevention of violence",
journal="Archives of general psychiatry",
year="1969",
author="Ilfeld, F. W. Jr",
volume="20",
number="6",
pages="675-689",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}