@article{ref1,
title="Deaths: usual and unusual associated with coal mining operations in Virginia",
journal="Medico-legal bulletin",
year="1971",
author="Gable, W. D.",
volume="20",
number="10",
pages="1-6",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-8164",
doi="",
url="http://dx.doi.org/"
}