@article{ref1,
title="The international threat",
journal="Terrorism",
year="1987",
author="Williams, Arnold",
volume="10",
number="3",
pages="225-226",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0149-0389",
doi="10.1080/10576108708435667",
url="http://dx.doi.org/10.1080/10576108708435667"
}