@article{ref1,
title="Aggression, social pressure and asymptote in laboratory mouse populations",
journal="Psychological reports",
year="1974",
author="Levin, B. H. and Vandenbergh, J. G. and Cole, J. L.",
volume="34",
number="1",
pages="239-244",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2941",
doi="",
url="http://dx.doi.org/"
}