@article{ref1,
title="Nuclear waste: weapons plutonium riskier above ground",
journal="Nature",
year="2016",
author="Lyman, Edwin and von Hippel, Frank N.",
volume="530",
number="7590",
pages="281-281",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/530281e",
url="http://dx.doi.org/10.1038/530281e"
}