@article{ref1,
title="Killing machines",
journal="Hastings center report",
year="1991",
author="Annas, George J.",
volume="21",
number="2",
pages="33-35",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0093-0334",
doi="",
url="http://dx.doi.org/"
}