@article{ref1,
title="Black on class and mortality: theory, method and history",
journal="Journal of public health medicine",
year="1990",
author="Strong, P. M.",
volume="12",
number="3-4",
pages="168-180",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0957-4832",
doi="",
url="http://dx.doi.org/"
}