@article{ref1,
title="Antecedent events as contributors to the escalation of aggression",
journal="Aggressive behavior",
year="1989",
author="Knutson, John F. and Zaidi, L. Y.",
volume="15",
number="1",
pages="74-75",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}