@article{ref1,
title="'Dirty bomb' scare prompts clampdown on lab security",
journal="Nature",
year="2002",
author="Dalton, Rex",
volume="417",
number="6891",
pages="776-776",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/417776a",
url="http://dx.doi.org/10.1038/417776a"
}