@article{ref1,
title="Childhood masculine or feminine role behavior and aggressiveness in adult males",
journal="Aggressive behavior",
year="1999",
author="Christiansen, Katie",
volume="25",
number="1",
pages="46-46",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}