@article{ref1,
title="Safety considerations in the use of nuclear devices in space",
journal="Health physics",
year="1966",
author="Lieberman, Jeffrey A. and Connor, G. B.",
volume="12",
number="6",
pages="743-749",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0017-9078",
doi="",
url="http://dx.doi.org/"
}