@article{ref1,
title="Effect of frustration upon imitation of aggression",
journal="Journal of personality and social psychology",
year="1972",
author="O'Neal, E. and Sulzer, J.",
volume="21",
number="1",
pages="30-34",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-3514",
doi="",
url="http://dx.doi.org/"
}