@article{ref1,
title="An effort to distinguish the violent from the nonviolent",
journal="Southern medical journal",
year="1972",
author="Justice, B. and Birkman, R.",
volume="65",
number="6",
pages="703-706",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0038-4348",
doi="",
url="http://dx.doi.org/"
}