@article{ref1,
title="Biological weapons in the twentieth century: a review and analysis",
journal="Critical reviews in microbiology",
year="2001",
author="Leitenberg, M.",
volume="27",
number="4",
pages="267-320",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1040-841X",
doi="10.1080/20014091096774",
url="http://dx.doi.org/10.1080/20014091096774"
}