@article{ref1,
title="Serum cortisol, testosterone, and testosterone-binding globulin responses to competitive fighting in human males",
journal="Aggressive behavior",
year="1981",
author="Elias, M.",
volume="7",
number="3",
pages="215-224",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}