@article{ref1,
title=""Biological", but fatal. Letters as potential biological weapons",
journal="HNO",
year="2002",
author="Schroeder, I.",
volume="50",
number="1",
pages="10-12",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0017-6192",
doi="",
url="http://dx.doi.org/"
}