@article{ref1,
title="Activism and extremism",
journal="Science",
year="1999",
author="Spargo, P.",
volume="285",
number="5426",
pages="337-337",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0036-8075",
doi="",
url="http://dx.doi.org/"
}