@article{ref1,
title="The nature of aggression",
journal="Mental health",
year="1966",
author="Stafford-Clark, David",
volume="25",
number="1",
pages="3-4",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0025-9632",
doi="",
url="http://dx.doi.org/"
}