@article{ref1,
title="The Urban Question Revisited: The Importance of Cities for Social Movements",
journal="International journal of urban and regional research",
year="2008",
author="Nicholls, Walter J.",
volume="32",
number="4",
pages="841-859",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0309-1317",
doi="10.1111/j.1468-2427.2008.00820.x",
url="http://dx.doi.org/10.1111/j.1468-2427.2008.00820.x"
}