@article{ref1,
title="The social motivation of western terrorists",
journal="Aggressive behavior",
year="1987",
author="Groebel, J",
volume="13",
number="5",
pages="295-295",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}