@article{ref1,
title="Review article: Apocalypse and revolution: Europe around the year 1000",
journal="Early medieval Europe",
year="2007",
author="MacLean, Simon",
volume="15",
number="1",
pages="86-106",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1468-0254",
doi="10.1111/j.1468-0254.2007.00199.x",
url="http://dx.doi.org/10.1111/j.1468-0254.2007.00199.x"
}