@article{ref1,
title="Relative deprivation as a factor in conflict in Northern Ireland",
journal="Sociological review, The",
year="1972",
author="Birrell, D.",
volume="20",
number="3",
pages="317-343",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-0261",
doi="",
url="http://dx.doi.org/"
}