@article{ref1,
title="Independent dimensions of hyperactivity and aggression: a validation with playroom observation data",
journal="Journal of abnormal psychology",
year="1982",
author="Milich, R. and Loney, J. and Landau, S.",
volume="91",
number="3",
pages="183-198",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-843X",
doi="",
url="http://dx.doi.org/"
}