@article{ref1,
title="Terrorism: terror prediction hits limits",
journal="Nature",
year="2015",
author="Schiermeier, Quirin",
volume="517",
number="7535",
pages="419-420",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/517419a",
url="http://dx.doi.org/10.1038/517419a"
}