@article{ref1,
title="Group identification under conditions of external danger",
journal="British journal of medical psychology",
year="1963",
author="Janis, I. L.",
volume="36",
number="",
pages="227-238",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1129",
doi="",
url="http://dx.doi.org/"
}