@article{ref1,
title="The public perception of protest",
journal="American sociological review",
year="1969",
author="Turner, R. H.",
volume="34",
number="6",
pages="815-831",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-1224",
doi="",
url="http://dx.doi.org/"
}