@article{ref1,
title="Hostage deaths put gas weapons in spotlight",
journal="Nature",
year="2002",
author="Schiermeier, Quirin",
volume="420",
number="6911",
pages="7-7",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/420007a",
url="http://dx.doi.org/10.1038/420007a"
}