@article{ref1,
title="The prosodic expression of anger: differentiating threat and frustration",
journal="Aggressive behavior",
year="1986",
author="Frick, RW",
volume="12",
number="2",
pages="121-128",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}