@article{ref1,
title="Accidents in Coal Mines",
journal="British medical journal: BMJ",
year="1964",
author="Archibald, R. M.",
volume="2",
number="542",
pages="1595-1595",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}