@article{ref1,
title="Inter-group aggression: the multi-individual organism and the survival instinct",
journal="Medicine, conflict and survival",
year="2000",
author="Poteliakhoff, A.",
volume="16",
number="4",
pages="471-472",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1362-3699",
doi="",
url="http://dx.doi.org/"
}