@article{ref1,
title="Keeping America secure for the 21st century",
journal="Proceedings of the National Academy of Sciences of the United States of America",
year="1999",
author="Lederberg, J. and Clinton, W. J.",
volume="96",
number="7",
pages="3486-3488",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0027-8424",
doi="",
url="http://dx.doi.org/"
}